Hey ,
These are the errors I’m seeing within your logs:
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\emcc", line 1602, in <module>
UnrealBuildTool: flush_js_optimizer_queue()
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\emcc", line 1508, in flush_js_optimizer_queue
UnrealBuildTool: run_passes(chunks[i], 'js_opts_' + str(i), just_split='receiveJSON' in chunks[i], just_concat='emitJSON' in chunks[i])
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\emcc", line 1478, in run_passes
UnrealBuildTool: final = shared.Building.js_optimizer(final, passes, debug_level >= 4, js_optimizer_extra_info, just_split=just_split, just_concat=just_concat)
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\tools\shared.py", line 1628, in js_optimizer
UnrealBuildTool: ret = js_optimizer.run(filename, passes, NODE_JS, debug, extra_info, just_split, just_concat)
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\tools\js_optimizer.py", line 538, in run
UnrealBuildTool: return temp_files.run_and_clean(lambda: run_on_js(filename, passes, js_engine, source_map, extra_info, just_split, just_concat))
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\tools\tempfiles.py", line 64, in run_and_clean
UnrealBuildTool: return func()
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\tools\js_optimizer.py", line 538, in <lambda>
UnrealBuildTool: return temp_files.run_and_clean(lambda: run_on_js(filename, passes, js_engine, source_map, extra_info, just_split, just_concat))
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\tools\js_optimizer.py", line 420, in run_on_js
UnrealBuildTool: filenames = [write_chunk(chunks[i], i) for i in range(len(chunks))]
UnrealBuildTool: File "C:\Unreal\UnrealEngine\Engine\Source\ThirdParty\HTML5\emsdk\emscripten\1.35.0\tools\js_optimizer.py", line 406, in write_chunk
UnrealBuildTool: f.write(chunk)
UnrealBuildTool: IOError: [Errno 0] Error
UnrealBuildTool: -------- End Detailed Actions Stats -----------------------------------------------------------
UnrealBuildTool: ERROR: UBT ERROR: Failed to produce item: C:\Unreal\Timber\Binaries\HTML5\Timber.js
It looks like all of the errors you’re having trouble with relate back to your emscripten. Since you’re in 4.11, emscripten should be set up with the engine by default. Please make sure that you’ve went into the launcher and clicked the down-arrow beside launch on your version of the engine. Once you’ve done that, make sure you’ve selected options and you’ve installed everything relating to HTML5. If that’s already selected, you might want to verify your version of the engine again.
Let us know what happens, make sure to upload the full logs as a .txt file if there are any new errors.
Thanks!