x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

AnswerHub Maintenance

Background maintenance is scheduled to occur between 9 - 11am EDT on Tuesday, May 21. Site operation may be slower than normal during this time and a brief interruption in operation may be observed

UE 4.9 and 4.13 crash on startup and the launcher won't let me access the library tab

I can't access 4.9.2 or 4.13 (the two versions installed on my machine). They crash on startup and give me an error message. The Epic Games Launcher also crashes if I try to access the library tab and gives me error CDF97.

The crash report for UE 4.9 is:

MachineId:DBE4316B45A182390BBD8AA7551BF2B3 EpicAccountId:f994587bf073404eb456cdcea8d9fc7a

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

"Assertion failed: ctx->ReadOffset + length <= (uint32)ctx->CompressedData.Num() [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.9\Engine\Source\Developer\ImageWrapper\Private\PngImageWrapper.cpp] [Line: 378] "

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\misc\outputdevice.cpp:354] UE4Editor_ImageWrapper!FPngImageWrapper::user_read_compressed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\developer\imagewrapper\private\pngimagewrapper.cpp:380] UE4Editor_ImageWrapper!png_crc_read() UE4Editor_ImageWrapper!png_read_row() UE4Editor_ImageWrapper!png_read_image() UE4Editor_ImageWrapper!png_read_png() UE4Editor_ImageWrapper!FPngImageWrapper::UncompressPNGData() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\developer\imagewrapper\private\pngimagewrapper.cpp:311] UE4Editor_ImageWrapper!FPngImageWrapper::Uncompress() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\developer\imagewrapper\private\pngimagewrapper.cpp:178] UE4Editor_ImageWrapper!FImageWrapperBase::GetRaw() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\developer\imagewrapper\private\imagewrapperbase.cpp:58] UE4Editor_SlateRHIRenderer!FSlateRHIResourceManager::LoadTexture() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slaterhirenderer\private\slaterhiresourcemanager.cpp:315] UE4Editor_SlateRHIRenderer!FSlateRHIResourceManager::FindOrCreateDynamicTextureResource() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slaterhirenderer\private\slaterhiresourcemanager.cpp:653] UE4Editor_SlateCore!FSlateElementBatcher::AddBoxElement() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\rendering\elementbatcher.cpp:268] UE4Editor_SlateCore!FSlateElementBatcher::AddElements() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\rendering\elementbatcher.cpp:129] UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindows_Private() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slaterhirenderer\private\slaterhirenderer.cpp:591] UE4Editor_Slate!FSlateApplication::PrivateDrawWindows() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1200] UE4Editor_Slate!FSlateApplication::DrawWindows() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:927] UE4Editor_Slate!FSlateApplication::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1441] UE4Editor!FEngineLoop::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\launchengineloop.cpp:2461] UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\launch.cpp:142] UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:126] UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]

And the crash report for the launcher is:

MachineId:DBE4316B45A182390BBD8AA7551BF2B3 EpicAccountId:f994587bf073404eb456cdcea8d9fc7a

You do not have any debugging symbols required to display the callstack for this crash.

Product Version: UE 4.13
Tags:
more ▼

asked Dec 31 '16 at 04:34 PM in Installation & Setup

avatar image

ArtificiallyStupid
1 1

(comments are locked)
10|2000 characters needed characters left

1 answer: sort voted first

Hello ArtificiallyStupid,

In this case I would usually suggest trying to verify the engine installation but if the Epic Games Launcher is crashing, that's not really an option. Have you tried reinstalling the launcher? If you have, or you try it and doesn't work, please visit help.epicgames.com and use the "Email Us" link under "Contact Us". This is our primary support channel for issues with the Launcher and it seems that the launcher is where we need to start.

more ▼

answered Jan 04 '17 at 05:57 PM

(comments are locked)
10|2000 characters needed characters left
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question