Epic launcher will not launch

Development Platform & Builds
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1

Hello.

It was working then one day it stopped. I’m not sure exactly what happened, but it was giving me .net errors.

37518-iamerror.jpg

The program can’t start because MSVCR120_CLR0400.dll is missing from your computer.

I downloaded as many of the packs as google deemed related and still nothing. From that point I uninstalled epic launcher, and downloaded a new version. I installed and the same thing happened.

When I double click the icon, the cursor shows loading but then nothing happens.

The only difference is that now there is no .net error dialog.

I will attach the error logs for all too see. I was a pay customer for ue4 for a very long time, could this be an issue ?

Here is the main punchline if you do not wish to look at the log file

[2015.04.05-21.43.32:934][ 0]LogWindows: === Critical error: ===
Assertion failed: SUCCEEDED(Hr) [File:D:\BuildFarm\buildmachine_++depot+UE4-LauncherReleases\Engine\Source\Developer\StandaloneRenderer\Private\Windows\D3D\SlateD3DRenderer.cpp] [Line: 117]
D3D11 Error Result 8007007E

KERNELBASE.dll!UnknownFunction (0x000007fefd6f940d) + 0 bytes [UnknownFile:0]

[link text][2]

2

I can’t test this but in the past, missing dll files can usual just be replaced. Try this to manually reinstall the file.

3

I think I found a solution. I don’t know what exactly fixed it, but there was a something from the following things I tried that fixed the issue :

  • ran dxdiag. saw my dlls from nvidia were unsigned so I tried getting the
    latest driver pack.
  • tried -opengl option when launching epic launcher
  • went directly to the shortcut path for the launcher (instead of
    using the short cut the installer made)
4

thank you, I think I fixed the issue. I know see the epic launcher :slight_smile: