Error in debug iOS build unreal 4.17

i am facing this certain error when i make a debug compile from xcode with an iPad connected to my mac. Its pretty urgent.

2017-09-06 21:40:37.691293+0530 MyProject[5909:2548710] Fatal error: [File:/Users/Name/Downloads/UnrealEngine-releas/Engine/Source/Runtime/CoreUObject/Private/Serialization/AsyncLoading.cpp]

[Line: 6565] LoadPackageAsync failed to begin to load a package because the supplied package name was neither a valid long package name nor a filename of a map within a content folder: ‘’

My xcode version 8.3.3, unreal 4.17, iPad iOS 10.3.2

Thanks in advance.