Unreal engine 4 editor does not start on ubuntu

Hello. This is my system :

Linux #22-Ubuntu SMP Tue Jun 16 17:15:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

ok. I have compiled the unreal engine 4 source code and I have tried to run the editor,but it does not work,as follows :

Blockquote

[2015.06.26-13.15.59:428][ 0]LogInit: Rocket: 0
[2015.06.26-13.15.59:434][ 0]LogInit: Using libcurl 7.38.0
[2015.06.26-13.15.59:434][ 0]LogInit: - built for x86_64-unknown-linux-gnu
[2015.06.26-13.15.59:434][ 0]LogInit: - supports SSL with OpenSSL/1.0.1i
[2015.06.26-13.15.59:434][ 0]LogInit: - supports HTTP deflate (compression) using libz 1.2.5
[2015.06.26-13.15.59:434][ 0]LogInit: - other features:
[2015.06.26-13.15.59:434][ 0]LogInit: CURL_VERSION_SSL
[2015.06.26-13.15.59:434][ 0]LogInit: CURL_VERSION_LIBZ
[2015.06.26-13.15.59:434][ 0]LogInit: CURL_VERSION_IPV6
[2015.06.26-13.15.59:434][ 0]LogInit: CURL_VERSION_ASYNCHDNS
[2015.06.26-13.15.59:434][ 0]LogInit: CURL_VERSION_LARGEFILE
[2015.06.26-13.15.59:434][ 0]LogInit: CURL_VERSION_TLSAUTH_SRP
[2015.06.26-13.15.59:434][ 0]LogInit: Libcurl: checking if ‘/etc/pki/tls/certs/ca-bundle.crt’ exists
[2015.06.26-13.15.59:434][ 0]LogInit: Libcurl: checking if ‘/etc/ssl/certs/ca-certificates.crt’ exists
[2015.06.26-13.15.59:434][ 0]LogInit: CurlRequestOptions (configurable via config and command line):
[2015.06.26-13.15.59:434][ 0]LogInit: - bVerifyPeer = true - Libcurl will verify peer certificate
[2015.06.26-13.15.59:434][ 0]LogInit: - bUseHttpProxy = false - Libcurl will NOT use HTTP proxy
[2015.06.26-13.15.59:434][ 0]LogInit: - bDontReuseConnections = false - Libcurl will reuse connections
[2015.06.26-13.15.59:434][ 0]LogInit: - CertBundlePath = /etc/ssl/certs/ca-certificates.crt - Libcurl will set CURLOPT_CAINFO to it
[2015.06.26-13.15.59:437][ 0]LogOnline:Warning: No default platform service specified for OnlineSubsystem
[2015.06.26-13.15.59:498][ 0]LogInit: Presizing for 0 objects not considered by GC, pre-allocating 0 bytes.
[2015.06.26-13.15.59:503][ 0]LogInit: Object subsystem initialized
[2015.06.26-13.15.59:504][ 0]LogInit: Initializing SDL.
[2015.06.26-13.16.00:184][ 0]LogInit: Display metrics:
[2015.06.26-13.16.00:184][ 0]LogInit: PrimaryDisplayWidth: 1920
[2015.06.26-13.16.00:184][ 0]LogInit: PrimaryDisplayHeight: 1080
[2015.06.26-13.16.00:184][ 0]LogInit: PrimaryDisplayWorkAreaRect:
[2015.06.26-13.16.00:184][ 0]LogInit: Left=0, Top=32, Right=1920, Bottom=1048
[2015.06.26-13.16.00:184][ 0]LogInit: VirtualDisplayRect:
[2015.06.26-13.16.00:184][ 0]LogInit: Left=0, Top=32, Right=1920, Bottom=1048
[2015.06.26-13.16.00:184][ 0]LogInit: TitleSafePaddingSize: X=0.000 Y=0.000
[2015.06.26-13.16.00:184][ 0]LogInit: ActionSafePaddingSize: X=0.000 Y=0.000
[2015.06.26-13.16.00:184][ 0]LogInit: Number of monitors: 1
[2015.06.26-13.16.00:184][ 0]LogInit: Monitor 0
[2015.06.26-13.16.00:184][ 0]LogInit: Name: S220HQL 22"
[2015.06.26-13.16.00:184][ 0]LogInit: ID: display0
[2015.06.26-13.16.00:184][ 0]LogInit: NativeWidth: 1920
[2015.06.26-13.16.00:184][ 0]LogInit: NativeHeight: 1080
[2015.06.26-13.16.00:184][ 0]LogInit: bIsPrimary: true
[2015.06.26-13.16.00:185][ 0]LogInit: Selected Device Profile: [Linux]
[2015.06.26-13.16.00:185][ 0]LogInit: Applying CVar settings loaded from the selected device profile: [Linux]
[2015.06.26-13.16.00:190][ 0]LogInit: Linux hardware info:
[2015.06.26-13.16.00:190][ 0]LogInit: - this process’ id (pid) is 18509, parent process’ id (ppid) is 18499
[2015.06.26-13.16.00:190][ 0]LogInit: - we are not running under debugger
[2015.06.26-13.16.00:190][ 0]LogInit: - machine network name is ‘-Z87-HD3’
[2015.06.26-13.16.00:190][ 0]LogInit: - we’re logged in locally
[2015.06.26-13.16.00:190][ 0]LogInit: - Number of physical cores available for the process: 4
[2015.06.26-13.16.00:190][ 0]LogInit: - Number of logical cores available for the process: 4
[2015.06.26-13.16.00:191][ 0]LogInit: - Memory allocator used: binned
[2015.06.26-13.16.00:191][ 0]LogInit: Linux-specific commandline switches:
[2015.06.26-13.16.00:191][ 0]LogInit: -nodwarf (currently OFF): suppress parsing of DWARF debug info (callstacks will be generated faster, but won’t have line numbers)
[2015.06.26-13.16.00:191][ 0]LogInit: -ansimalloc - use malloc()/free() from libc (useful for tools like valgrind and electric fence)
[2015.06.26-13.16.00:191][ 0]LogInit: -jemalloc - use jemalloc for all memory allocation
[2015.06.26-13.16.00:191][ 0]LogInit: -binnedmalloc - use binned malloc for all memory allocation
[2015.06.26-13.16.00:191][ 0]LogInit: -httpproxy=ADDRESS:PORT - redirects HTTP requests to a proxy (only supported if compiled with libcurl)
[2015.06.26-13.16.00:191][ 0]LogInit: -reuseconn - allow libcurl to reuse HTTP connections (only matters if compiled with libcurl)
[2015.06.26-13.16.00:191][ 0]LogInit: -virtmemkb=NUMBER - sets process virtual memory (address space) limit (overrides VirtualMemoryLimitInKB value from .ini)
[2015.06.26-13.16.00:191][ 0]LogInit: Setting LC_NUMERIC to en_US
[2015.06.26-13.16.00:191][ 0]LogInit: - Physical RAM available (not considering process quota): 8 GB (7868 MB, 8057796 KB, 8251183104 bytes)
[2015.06.26-13.16.00:213][ 0]LogTextLocalizationManager: The requested culture (‘it_IT’) has no localization data; falling back to ‘en’ for localization and internationalization data.
[2015.06.26-13.16.00:323][ 0]LogTextLocalizationManager:Warning: Loaded localization resources contain conflicting entries for (Namespace:ContentBrowser, Key:ImportAssetToolTip):
Localization Resource: (/home//Scrivania/UnrealEngine/Engine/Content/Localization/Editor/en/Editor.locres) Source String Hash: (-630476809) Localized String: (Import to {0}…)
Localization Resource: (/home//Scrivania/UnrealEngine/Engine/Content/Localization/Editor/en/Editor.locres) Source String Hash: (1271782899) Localized String: (Imports an asset from file to this folder.)
[2015.06.26-13.16.00:480][ 0]LogRHI:Warning: disabling reporting back of debug groups and markers to the OpenGL debug output callback
[2015.06.26-13.16.00:481][ 0]LogRHI:Warning: disabling reporting back of debug groups and markers to the OpenGL debug output callback
[2015.06.26-13.16.00:481][ 0]LogRHI: Initializing OpenGL RHI
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_VENDOR: nouveau
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_RENDERER: Gallium 0.4 on NVE6
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_VERSION: 3.3 (Core Profile) Mesa 10.7.0-devel (git-316206e 2015-06-26 vivid-oibaf-ppa)
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_SHADING_LANGUAGE_VERSION: 3.30
[2015.06.26-13.16.00:481][ 0]LogRHI: OpenGL Extensions:
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_ES2_compatibility
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_ES3_compatibility
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_base_instance
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_blend_func_extended
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_buffer_storage
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_clear_buffer_object
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_clip_control
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_color_buffer_float
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_compressed_texture_pixel_storage
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_conditional_render_inverted
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_copy_buffer
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_conservative_depth
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_debug_output
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_depth_buffer_float
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_depth_clamp
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_derivative_control
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_direct_state_access
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_draw_buffers
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_draw_buffers_blend
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_draw_elements_base_vertex
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_draw_indirect
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_draw_instanced
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_explicit_attrib_location
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_explicit_uniform_location
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_fragment_coord_conventions
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_fragment_layer_viewport
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_fragment_shader
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_framebuffer_object
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_framebuffer_sRGB
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_get_program_binary
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_gpu_shader5
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_gpu_shader_fp64
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_half_float_pixel
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_half_float_vertex
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_instanced_arrays
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_internalformat_query
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_invalidate_subdata
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_map_buffer_alignment
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_map_buffer_range
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_multi_bind
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_multi_draw_indirect
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_occlusion_query2
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_pipeline_statistics_query
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_pixel_buffer_object
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_point_sprite
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_program_interface_query
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_provoking_vertex
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_robustness
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_sample_shading
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_sampler_objects
[2015.06.26-13.16.00:481][ 0]LogRHI: GL_ARB_seamless_cube_map
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_seamless_cubemap_per_texture
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_separate_shader_objects
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_shader_bit_encoding
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_shader_objects
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_shader_precision
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_shader_texture_lod
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_shading_language_packing
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_shading_language_420pack
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_stencil_texturing
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_sync
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_barrier
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_buffer_object
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_buffer_object_rgb32
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_buffer_range
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_compression_bptc
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_compression_rgtc
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_cube_map_array
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_float
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_gather
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_mirror_clamp_to_edge
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_multisample
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_non_power_of_two
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_query_levels
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_query_lod
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_rectangle
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_rgb10_a2ui
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_rg
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_stencil8
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_storage
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_storage_multisample
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_view
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_texture_swizzle
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_timer_query
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_transform_feedback2
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_transform_feedback3
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_transform_feedback_instanced
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_uniform_buffer_object
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_vertex_array_bgra
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_vertex_array_object
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_vertex_attrib_binding
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_vertex_shader
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_vertex_attrib_64bit
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_vertex_type_10f_11f_11f_rev
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_vertex_type_2_10_10_10_rev
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ARB_viewport_array
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_abgr
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_blend_equation_separate
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_draw_buffers2
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_draw_instanced
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_framebuffer_blit
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_framebuffer_multisample
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_framebuffer_multisample_blit_scaled
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_framebuffer_sRGB
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_packed_depth_stencil
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_packed_float
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_pixel_buffer_object
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_polygon_offset_clamp
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_provoking_vertex
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_shader_integer_mix
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_array
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_compression_dxt1
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ANGLE_texture_compression_dxt3
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ANGLE_texture_compression_dxt5
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_compression_latc
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_compression_rgtc
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_compression_s3tc
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_filter_anisotropic
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_integer
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_mirror_clamp
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_shared_exponent
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_snorm
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_sRGB
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_sRGB_decode
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_texture_swizzle
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_timer_query
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_transform_feedback
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_EXT_vertex_array_bgra
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_OES_EGL_image
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_OES_read_format
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_KHR_debug
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_KHR_context_flush_control
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_AMD_conservative_depth
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_AMD_draw_buffers_blend
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_AMD_performance_monitor
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_AMD_seamless_cubemap_per_texture
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_AMD_shader_trinary_minmax
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ATI_blend_equation_separate
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ATI_texture_compression_3dc
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ATI_texture_float
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_ATI_texture_mirror_once
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_IBM_multimode_draw_arrays
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_MESA_pack_invert
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_MESA_texture_signed_rgba
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_NV_conditional_render
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_NV_depth_clamp
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_NV_packed_depth_stencil
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_NV_texture_barrier
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_NV_vdpau_interop
[2015.06.26-13.16.00:482][ 0]LogRHI: GL_S3_s3tc
[2015.06.26-13.16.00:483][ 0]LogRHI: GL_MAX_TEXTURE_SIZE: 16384
[2015.06.26-13.16.00:483][ 0]LogRHI: GL_MAX_CUBE_MAP_TEXTURE_SIZE: 16384
[2015.06.26-13.16.00:483][ 0]LogRHI: GL_MAX_ARRAY_TEXTURE_LAYERS: 2048
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_3D_TEXTURE_SIZE: 4096
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_RENDERBUFFER_SIZE: 16384
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_TEXTURE_IMAGE_UNITS: 16
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_DRAW_BUFFERS: 8
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_COLOR_ATTACHMENTS: 8
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_SAMPLES: 8
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_COLOR_TEXTURE_SAMPLES: 8
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_DEPTH_TEXTURE_SAMPLES: 8
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_INTEGER_SAMPLES: 8
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: 48
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_VERTEX_ATTRIBS: 16
[2015.06.26-13.16.00:484][ 0]LogRHI: GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 16
[2015.06.26-13.16.00:484][ 0]LogRHI: OpenGL MajorVersion = 3, MinorVersion = 3, ShaderPlatform = GLSL_150, FeatureLevel = SM4
[2015.06.26-13.16.00:491][ 0]LogShaderCompilers:Display: Using Local Shader Compiler.
[2015.06.26-13.16.01:106][ 0]LogHAL: FLinuxPlatformProcess::CreateProc: spawned child 18524
[2015.06.26-13.16.01:582][ 0]LogHAL: Child 18524 is no more running (zombie), Wait()ing immediately.
[2015.06.26-13.16.01:582][ 0]LogTemp:Display: Loaded TP DesktopTargetPlatform
[2015.06.26-13.16.01:752][ 0]LogTemp:Display: Loaded TP LinuxTargetPlatform
[2015.06.26-13.16.01:917][ 0]LogTemp:Display: Loaded TP LinuxServerTargetPlatform
[2015.06.26-13.16.02:083][ 0]LogTemp:Display: Loaded TP LinuxNoEditorTargetPlatform
[2015.06.26-13.16.02:249][ 0]LogTargetPlatformManager:Display: Building Assets For Linux
[2015.06.26-13.16.02:557][ 0]LogDerivedDataCache:Display: Max Cache Size: 512 MB
[2015.06.26-13.16.02:557][ 0]LogDerivedDataCache:Display: Starting with empty Boot cache
[2015.06.26-13.16.02:557][ 0]LogDerivedDataCache: FDerivedDataBackendGraph: Pak pak cache file …/…/…/Engine/DerivedDataCache/DDC.ddp not found, will not use a pak cache.
[2015.06.26-13.16.02:557][ 0]LogDerivedDataCache: Unable to find inner node Pak for hierarchical cache Hierarchy.
[2015.06.26-13.16.02:558][ 0]LogDerivedDataCache: FDerivedDataBackendGraph: EnginePak pak cache file …/…/…/Engine/DerivedDataCache/DDC.ddp not found, will not use a pak cache.
[2015.06.26-13.16.02:558][ 0]LogDerivedDataCache: Unable to find inner node EnginePak for hierarchical cache Hierarchy.
[2015.06.26-13.16.02:558][ 0]LogDerivedDataCache: Using Local data cache path …/…/…/Engine/DerivedDataCache: Writable
[2015.06.26-13.16.02:558][ 0]LogDerivedDataCache: Shared data cache path not found in *engine.ini, will not use an Shared cache.
[2015.06.26-13.16.02:558][ 0]LogDerivedDataCache: Unable to find inner node Shared for hierarchical cache Hierarchy.
[2015.06.26-13.16.02:672][ 0]LogHAL: Linux SourceCodeAccessSettings: NullSourceCodeAccessor
[2015.06.26-13.16.02:679][ 0]LogInit: Selected Device Profile: [Linux]
[2015.06.26-13.16.02:758][ 0]LogMaterial: Missing cached shader map for material LandscapeGizmo_Mat, compiling.
[2015.06.26-13.16.02:782][ 0]LogHAL: Changed child’s priority (nice value) to 10 (change from 0)
[2015.06.26-13.16.02:782][ 0]LogHAL: Changed child’s priority (nice value) to 10 (change from 0)
[2015.06.26-13.16.02:782][ 0]LogMaterial: Missing cached shader map for material LandscapeGizmoHeight_Mat, compiling.
Using binned.
Using binned.
[2015.06.26-13.16.02:836][ 0]LogHAL: Changed child’s priority (nice value) to 10 (change from 0)
[2015.06.26-13.16.02:836][ 0]LogMaterial: Missing cached shader map for material SplineEditorMeshMat, compiling.
[2015.06.26-13.16.02:852][ 0]LogTaskGraph: Started task graph with 3 named threads and 6 total threads.
[2015.06.26-13.16.02:852][ 0]LogInit: Version: 4.8.1-0+++depot+UE4-Releases+4.8
[2015.06.26-13.16.02:852][ 0]LogInit: API Version: 0
[2015.06.26-13.16.02:852][ 0]LogInit: Compiled (64-bit): Jun 26 2015 12:55:20
[2015.06.26-13.16.02:852][ 0]LogInit: Compiled with Clang: 3.5.2 (tags/RELEASE_352/final)
[2015.06.26-13.16.02:852][ 0]LogInit: Build Configuration: Development
[2015.06.26-13.16.02:852][ 0]LogInit: Branch Name: ++depot+UE4-Releases+4.8
[2015.06.26-13.16.02:852][ 0]LogInit: Command line: /home//Scrivania/UnrealEngine/Engine/Intermediate/Shaders/WorkingDirectory/18509/0/ 18509 0 WorkerInputOnly.in WorkerOutputOnly.out -communicatethroughfile -Multiprocess -NOPACKAGECACHE -Multiprocess
[2015.06.26-13.16.02:852][ 0]LogInit: Base directory: /home//Scrivania/UnrealEngine/Engine/Binaries/Linux/
[2015.06.26-13.16.02:852][ 0]LogInit: Rocket: 0
[2015.06.26-13.16.02:852][ 0]LogInit: Linux hardware info:
[2015.06.26-13.16.02:852][ 0]LogInit: - this process’ id (pid) is 18541, parent process’ id (ppid) is 18509
[2015.06.26-13.16.02:852][ 0]LogInit: - we are not running under debugger
[2015.06.26-13.16.02:852][ 0]LogInit: - machine network name is ‘-Z87-HD3’
[2015.06.26-13.16.02:852][ 0]LogInit: - we’re logged in locally
[2015.06.26-13.16.02:852][ 0]LogInit: - Number of physical cores available for the process: 4
[2015.06.26-13.16.02:852][ 0]LogInit: - Number of logical cores available for the process: 4
[2015.06.26-13.16.02:852][ 0]LogInit: - Memory allocator used: binned
[2015.06.26-13.16.02:852][ 0]LogInit: Linux-specific commandline switches:
[2015.06.26-13.16.02:852][ 0]LogInit: -nodwarf (currently OFF): suppress parsing of DWARF debug info (callstacks will be generated faster, but won’t have line numbers)
[2015.06.26-13.16.02:852][ 0]LogInit: -ansimalloc - use malloc()/free() from libc (useful for tools like valgrind and electric fence)
[2015.06.26-13.16.02:852][ 0]LogInit: -jemalloc - use jemalloc for all memory allocation
[2015.06.26-13.16.02:852][ 0]LogInit: -binnedmalloc - use binned malloc for all memory allocation
[2015.06.26-13.16.02:852][ 0]LogInit: -httpproxy=ADDRESS:PORT - redirects HTTP requests to a proxy (only supported if compiled with libcurl)
[2015.06.26-13.16.02:852][ 0]LogInit: -reuseconn - allow libcurl to reuse HTTP connections (only matters if compiled with libcurl)
[2015.06.26-13.16.02:852][ 0]LogInit: -virtmemkb=NUMBER - sets process virtual memory (address space) limit (overrides VirtualMemoryLimitInKB value from .ini)
[2015.06.26-13.16.02:852][ 0]LogInit: Setting LC_NUMERIC to en_US
[2015.06.26-13.16.02:852][ 0]LogInit: - Physical RAM available (not considering process quota): 8 GB (7868 MB, 8057796 KB, 8251183104 bytes)
[2015.06.26-13.16.02:855][ 0]LogTextLocalizationManager: The requested culture (‘it_IT’) has no localization data; falling back to ‘en’ for localization and internationalization data.
[2015.06.26-13.16.02:856][ 0]LogTaskGraph: Started task graph with 3 named threads and 6 total threads.
[2015.06.26-13.16.02:856][ 0]LogInit: Version: 4.8.1-0+++depot+UE4-Releases+4.8
[2015.06.26-13.16.02:856][ 0]LogInit: API Version: 0
[2015.06.26-13.16.02:856][ 0]LogInit: Compiled (64-bit): Jun 26 2015 12:55:20
[2015.06.26-13.16.02:856][ 0]LogInit: Compiled with Clang: 3.5.2 (tags/RELEASE_352/final)
[2015.06.26-13.16.02:856][ 0]LogInit: Build Configuration: Development
[2015.06.26-13.16.02:856][ 0]LogInit: Branch Name: ++depot+UE4-Releases+4.8
[2015.06.26-13.16.02:856][ 0]LogInit: Command line: /home//Scrivania/UnrealEngine/Engine/Intermediate/Shaders/WorkingDirectory/18509/1/ 18509 1 WorkerInputOnly.in WorkerOutputOnly.out -communicatethroughfile -Multiprocess -NOPACKAGECACHE -Multiprocess
[2015.06.26-13.16.02:856][ 0]LogInit: Base directory: /home//Scrivania/UnrealEngine/Engine/Binaries/Linux/
[2015.06.26-13.16.02:856][ 0]LogInit: Rocket: 0
[2015.06.26-13.16.02:856][ 0]LogInit: Linux hardware info:
[2015.06.26-13.16.02:856][ 0]LogInit: - this process’ id (pid) is 18542, parent process’ id (ppid) is 18509
[2015.06.26-13.16.02:856][ 0]LogInit: - we are not running under debugger
[2015.06.26-13.16.02:856][ 0]LogInit: - machine network name is ‘-Z87-HD3’
[2015.06.26-13.16.02:856][ 0]LogInit: - we’re logged in locally
[2015.06.26-13.16.02:856][ 0]LogInit: - Number of physical cores available for the process: 4
[2015.06.26-13.16.02:856][ 0]LogInit: - Number of logical cores available for the process: 4
[2015.06.26-13.16.02:856][ 0]LogInit: - Memory allocator used: binned
[2015.06.26-13.16.02:856][ 0]LogInit: Linux-specific commandline switches:
[2015.06.26-13.16.02:856][ 0]LogInit: -nodwarf (currently OFF): suppress parsing of DWARF debug info (callstacks will be generated faster, but won’t have line numbers)
[2015.06.26-13.16.02:856][ 0]LogInit: -ansimalloc - use malloc()/free() from libc (useful for tools like valgrind and electric fence)
[2015.06.26-13.16.02:856][ 0]LogInit: -jemalloc - use jemalloc for all memory allocation
[2015.06.26-13.16.02:856][ 0]LogInit: -binnedmalloc - use binned malloc for all memory allocation
[2015.06.26-13.16.02:856][ 0]LogInit: -httpproxy=ADDRESS:PORT - redirects HTTP requests to a proxy (only supported if compiled with libcurl)
[2015.06.26-13.16.02:856][ 0]LogInit: -reuseconn - allow libcurl to reuse HTTP connections (only matters if compiled with libcurl)
[2015.06.26-13.16.02:856][ 0]LogInit: -virtmemkb=NUMBER - sets process virtual memory (address space) limit (overrides VirtualMemoryLimitInKB value from .ini)
[2015.06.26-13.16.02:856][ 0]LogInit: Setting LC_NUMERIC to en_US
[2015.06.26-13.16.02:857][ 0]LogInit: - Physical RAM available (not considering process quota): 8 GB (7868 MB, 8057796 KB, 8251183104 bytes)
[2015.06.26-13.16.02:859][ 0]LogTextLocalizationManager: The requested culture (‘it_IT’) has no localization data; falling back to ‘en’ for localization and internationalization data.
Using binned.
[2015.06.26-13.16.03:058][ 0]LogMeshUtilities: No automatic mesh reduction module available
[2015.06.26-13.16.03:058][ 0]LogMeshUtilities: No automatic mesh merging module available
[2015.06.26-13.16.03:072][ 0]ImportText (ComponentSweepMultiTests): Missing closing parenthesis: (RootShapeAsset=“/Engine/BasicShapes/Cube.Cube”,ShapeType=“TriggerCapsule”,HitResult=(Time=0.50,Location=(X=-100.000015,Y=0.0,Z=100.000015),ImpactPoint=(X=-50.0,Y=0.0,Z=50.0),Normal=(X=-1.0,Y=-0.0,Z=0.0),ImpactNormal=(X=0.0,Y=0.0,Z=1.0),TraceStart=(X=-200.0,Y=0.0,Z=200.0),TraceEnd=(X=0.0,Y=0.0,Z=0.0))
[2015.06.26-13.16.03:072][ 0]ImportText (LineTraceSingleByChannelTests): Missing closing parenthesis: (RootShapeAsset=“/Engine/BasicShapes/Cube.Cube”,HitResult=(Time=0.50,Location=(X=-100.000015,Y=0.0,Z=100.000015),ImpactPoint=(X=-50.0,Y=0.0,Z=50.0),Normal=(X=-1.0,Y=-0.0,Z=0.0),ImpactNormal=(X=0.0,Y=0.0,Z=1.0),TraceStart=(X=-200.0,Y=0.0,Z=200.0),TraceEnd=(X=0.0,Y=0.0,Z=0.0))
[2015.06.26-13.16.03:073][ 0]LogTaskGraph: Started task graph with 3 named threads and 6 total threads.
[2015.06.26-13.16.03:073][ 0]LogInit: Version: 4.8.1-0+++depot+UE4-Releases+4.8
[2015.06.26-13.16.03:073][ 0]LogInit: API Version: 0
[2015.06.26-13.16.03:073][ 0]LogInit: Compiled (64-bit): Jun 26 2015 12:55:20
[2015.06.26-13.16.03:073][ 0]LogInit: Compiled with Clang: 3.5.2 (tags/RELEASE_352/final)
[2015.06.26-13.16.03:073][ 0]LogInit: Build Configuration: Development
[2015.06.26-13.16.03:073][ 0]LogInit: Branch Name: ++depot+UE4-Releases+4.8
[2015.06.26-13.16.03:073][ 0]LogInit: Command line: /home//Scrivania/UnrealEngine/Engine/Intermediate/Shaders/WorkingDirectory/18509/2/ 18509 2 WorkerInputOnly.in WorkerOutputOnly.out -communicatethroughfile -Multiprocess -NOPACKAGECACHE -Multiprocess
[2015.06.26-13.16.03:073][ 0]LogInit: Base directory: /home//Scrivania/UnrealEngine/Engine/Binaries/Linux/
[2015.06.26-13.16.03:073][ 0]LogInit: Rocket: 0
[2015.06.26-13.16.03:073][ 0]LogInit: Linux hardware info:
[2015.06.26-13.16.03:073][ 0]LogInit: - this process’ id (pid) is 18559, parent process’ id (ppid) is 18509
[2015.06.26-13.16.03:073][ 0]LogInit: - we are not running under debugger
[2015.06.26-13.16.03:073][ 0]LogInit: - machine network name is ‘-Z87-HD3’
[2015.06.26-13.16.03:073][ 0]LogInit: - we’re logged in locally
[2015.06.26-13.16.03:073][ 0]LogInit: - Number of physical cores available for the process: 4
[2015.06.26-13.16.03:073][ 0]LogInit: - Number of logical cores available for the process: 4
[2015.06.26-13.16.03:073][ 0]LogInit: - Memory allocator used: binned
[2015.06.26-13.16.03:073][ 0]LogInit: Linux-specific commandline switches:
[2015.06.26-13.16.03:073][ 0]LogInit: -nodwarf (currently OFF): suppress parsing of DWARF debug info (callstacks will be generated faster, but won’t have line numbers)
[2015.06.26-13.16.03:073][ 0]LogInit: -ansimalloc - use malloc()/free() from libc (useful for tools like valgrind and electric fence)
[2015.06.26-13.16.03:073][ 0]LogInit: -jemalloc - use jemalloc for all memory allocation
[2015.06.26-13.16.03:073][ 0]LogInit: -binnedmalloc - use binned malloc for all memory allocation
[2015.06.26-13.16.03:073][ 0]LogInit: -httpproxy=ADDRESS:PORT - redirects HTTP requests to a proxy (only supported if compiled with libcurl)
[2015.06.26-13.16.03:073][ 0]LogInit: -reuseconn - allow libcurl to reuse HTTP connections (only matters if compiled with libcurl)
[2015.06.26-13.16.03:073][ 0]LogInit: -virtmemkb=NUMBER - sets process virtual memory (address space) limit (overrides VirtualMemoryLimitInKB value from .ini)
[2015.06.26-13.16.03:074][ 0]LogInit: Setting LC_NUMERIC to en_US
[2015.06.26-13.16.03:074][ 0]LogInit: - Physical RAM available (not considering process quota): 8 GB (7868 MB, 8057796 KB, 8251183104 bytes)
[2015.06.26-13.16.03:080][ 0]LogTextLocalizationManager: The requested culture (‘it_IT’) has no localization data; falling back to ‘en’ for localization and internationalization data.
[2015.06.26-13.16.03:239][ 0]LogStaticMesh: Building static mesh EditorSphere…
*** Error in `./UE4Editor’: free(): invalid next size (normal): 0x000000000abbc010 ***
Annullato (core dump creato)
root@-Z87-HD3:/home//Scrivania/UnrealEngine/Engine/Binaries/Linux# [2015.06.26-13.16.07:004][ 0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
[2015.06.26-13.16.07:015][ 0]LogExit: Preparing to exit.
[2015.06.26-13.16.07:018][ 0]LogExit: Exiting.
[2015.06.26-13.16.07:098][ 0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
[2015.06.26-13.16.07:108][ 0]LogExit: Preparing to exit.
[2015.06.26-13.16.07:111][ 0]LogExit: Exiting.
[2015.06.26-13.16.07:365][ 0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
[2015.06.26-13.16.07:376][ 0]LogExit: Preparing to exit.
[2015.06.26-13.16.07:379][ 0]LogExit: Exiting.

I would suggest going to the IRC freenode.net #UnrealLinux channel. Most of them generally stray away from ubuntu and use arch or some other distro. Ubuntu has way to much proprietary crap in it to get a clean build. But they do regular community builds and they are happy to provide support…

IRC freenode.net [#UE4linux (channel)]. Sorry I apparently can not edit my suggestion.

Error in `./UE4Editor’: free(): invalid next size (normal): 0x000000000abbc010 *

Absolutely nonsense what you are talking about. Your comment is not helping at all.

If you and all linux users would read the linux part of the wiki, you would already know what is going on with your issue. You problem is exactly this:

A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums

I can see that you are using the mesa drivers which has problems with the mesh optimizations utility in UE4. Follow the instructions and try again. Read the WIKI. There are gazillions of information about UE4 and Linux.

you need to install nvidia propietary drivers with your GTX card

sudo apt-get install nvidia-346