Keeps crashing

Development Platform & Builds
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1

** I just downloaded unreal 4 and even when i make most simplistic levels it keeps crashing and i keep getting this error**

MachineId:
EpicAccountId:

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: FCompression::UncompressMemory(CompressionFlags, OutData.GetData(), UncompressedSize, CompressedData.GetData() + sizeof(UncompressedSize), CompressedData.Num() - sizeof(UncompressedSize)) [File:d:\buildfarm\buildmachine_++depot+

KERNELBASE + 37901 bytes
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() + 292 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FOutputDevice::Logf__VA() + 248 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:144]
UE4Editor_Core!FDebug::AssertFailed() + 1079 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:224]
UE4Editor_DerivedDataCache!FCompressedPakFileDerivedDataBackend::GetCachedData() + 235 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\developer\deriveddatacache\private\pakfilederiveddatabackend.h:480]
UE4Editor_DerivedDataCache!FHierarchicalDerivedDataBackend::GetCachedData() + 241 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\developer\deriveddatacache\private\hierarchicalderiveddatabackend.h:85]
UE4Editor_DerivedDataCache!FDerivedDataLimitKeyLengthWrapper::GetCachedData() + 648 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\developer\deriveddatacache\private\deriveddatalimitkeylengthwrapper.h:74]
UE4Editor_DerivedDataCache!FDerivedDataCache::FBuildAsyncWorker::DoWork() + 575 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\developer\deriveddatacache\private\deriveddatacache.cpp:59]
UE4Editor_DerivedDataCache!FDerivedDataCache::GetSynchronous() + 340 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\developer\deriveddatacache\private\deriveddatacache.cpp:239]
UE4Editor_Engine!FAsyncStreamDerivedMipWorker::DoWork() + 84 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\texturederiveddata.cpp:1294]
UE4Editor_Engine!FAsyncTask::DoThreadedWork() + 18 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\async\asyncwork.h:317]
UE4Editor_Core!FQueuedThread::Run() + 123 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\hal\threadingbase.cpp:326]
UE4Editor_Core!FRunnableThreadWin::Run() + 102 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]
UE4Editor_Core!FRunnableThreadWin::GuardedRun() + 93 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:26]
kernel32 + 88557 bytes
ntdll + 181569 bytes

2

Hi rockjunkie,

Can you and attach log from your project after it crashes? You can find it in your project folder in \Saved\Logs. Please also attach your dxdiag. Thanks!

3

[link text][1]

heres my log and how do i get my dxdiag
[1]: 33387-myproject.log (12.9 KB)

4

You can find your dxdiag information by opening Windows Start Menu and searching for “dxdiag”. Open dxdiag.exe and click Save All Information button, which will create a .txt file with your system information in it. You should be able to attach that here without needing to it first.

5

ok here it islink text

6

Are you doing anything in particular when you get this crash? When exactly does it crash after project opens?

7

Hi rockjunkie83200,

I haven’t heard back from you in a while, so I’m resolving this post for tracking purposes. Please let us know if you’re still experiencing this crash, please provide details requested above as well as any other information that may help us further investigate. Thanks!