Minecraft Forums

I haven't played Minecraft for some months so went back to it but it does not launch anymore. The launcher opens but when I click to play it crashes:

"An unexpected issue has occurred and the game has crashed. We're sorry for the inconvenience".

Please see below the crash log. If anyone can help I'd appreciate it, thanks!

17:00:49
launcher
Preparing to launch minecraft client for 1.12.2


17:00:50
launcher
Checking installations.


17:00:50
launcher
Minecraft client 1.12.2 is ready to start.


17:00:50
launcher
Starting!


17:00:50
launcher
Using default game log configuration client-1.12.xml (outputs XML)


17:00:52
bib
Setting user: Deathwing1983


17:00:55
bid
Skipping bad option:


17:00:55
bib
LWJGL Version: 2.9.4


17:00:56
cev
Reloading ResourceManager: Default


17:00:57
chm
Starting up SoundSystem...


17:00:57
chm
Initializing LWJGL OpenAL


17:00:57
chm
(The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)


17:00:57
chm
OpenAL initialized.


17:00:57
chm
Sound engine started


17:01:03
cdp
Created: 1024x512 textures-atlas


17:01:06
com.mojang.text2speech.NarratorWindows
Narrator library for x64 successfully loaded


17:01:06
bib
Couldn't toggle fullscreen
org.lwjgl.LWJGLException: Failed to set display mode (-2).
at org.lwjgl.opengl.WindowsDisplay.nSwitchDisplayMode(Native Method)
at org.lwjgl.opengl.WindowsDisplay.switchDisplayMode(WindowsDisplay.java:358)
at org.lwjgl.opengl.Display.switchDisplayMode(Display.java:359)
at org.lwjgl.opengl.Display.setDisplayModeAndFullscreenInternal(Display.java:507)
at org.lwjgl.opengl.Display.setFullscreen(Display.java:475)
at bib.r(SourceFile:1556)
at bib.aq(SourceFile:573)
at bib.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:123)


17:01:06
buy
Failed to load shader: minecraft:shaders/post/entity_outline.json
nj: Invalid shaders/post/entity_outline.json targets[0]: No OpenGL context found in the current thread.
at nj.a(SourceFile:47)
at ccy.a(SourceFile:75)
at ccy.<init>(SourceFile:56)
at buy.b(SourceFile:246)
at bib.aq(SourceFile:582)
at bib.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:123)
Caused by: java.lang.RuntimeException: No OpenGL context found in the current thread.
at org.lwjgl.opengl.GLContext.getCapabilities(GLContext.java:124)
at org.lwjgl.opengl.GL30.glGenFramebuffers(GL30.java:1157)
at cii.g(SourceFile:640)
at bvd.b(SourceFile:98)
at bvd.a(SourceFile:56)
at bvd.<init>(SourceFile:42)
at ccy.a(SourceFile:254)
at ccy.a(SourceFile:109)
at ccy.a(SourceFile:73)
... 5 more

Reinstall MC from scratch.

I removed then re-installed Minecraft but it has not fixed it.

I know previously it would not work full-screen, so maybe it is trying to do that again? I had it set to windowed mode as far as I am aware. How can I check this?

How did you "removed MC"?

I used Windows Remove Programme.

Sorry for the delay in reply; still having the issue.

3995 debugs
15 infos
2 warnings
1 error





09:16:02
launcher
Preparing to launch minecraft client for 1.12.2


09:16:03
launcher
Checking installations.


09:16:03
launcher
Minecraft client 1.12.2 is ready to start.


09:16:03
launcher
Starting!


09:16:03
launcher
Using default game log configuration client-1.12.xml (outputs XML)


09:16:04
bib
Setting user: Deathwing1983


09:16:06
bid
Skipping bad option:


09:16:06
bib
LWJGL Version: 2.9.4


09:16:07
cev
Reloading ResourceManager: Default


09:16:08
chm
Starting up SoundSystem...


09:16:08
chm
Initializing LWJGL OpenAL


09:16:08
chm
(The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)


09:16:08
chm
OpenAL initialized.


09:16:09
chm
Sound engine started


09:16:13
cdp
Created: 1024x512 textures-atlas


09:16:15
com.mojang.text2speech.NarratorWindows
Narrator library for x64 successfully loaded


09:16:16
bib
Couldn't toggle fullscreen
org.lwjgl.LWJGLException: Failed to set display mode (-2).
at org.lwjgl.opengl.WindowsDisplay.nSwitchDisplayMode(Native Method)
at org.lwjgl.opengl.WindowsDisplay.switchDisplayMode(WindowsDisplay.java:358)
at org.lwjgl.opengl.Display.switchDisplayMode(Display.java:359)
at org.lwjgl.opengl.Display.setDisplayModeAndFullscreenInternal(Display.java:507)
at org.lwjgl.opengl.Display.setFullscreen(Display.java:475)
at bib.r(SourceFile:1556)
at bib.aq(SourceFile:573)
at bib.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:123)


09:16:16
buy
Failed to load shader: minecraft:shaders/post/entity_outline.json
nj: Invalid shaders/post/entity_outline.json targets[0]: No OpenGL context found in the current thread.
at nj.a(SourceFile:47)
at ccy.a(SourceFile:75)
at ccy.<init>(SourceFile:56)
at buy.b(SourceFile:246)
at bib.aq(SourceFile:582)
at bib.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:123)
Caused by: java.lang.RuntimeException: No OpenGL context found in the current thread.
at org.lwjgl.opengl.GLContext.getCapabilities(GLContext.java:124)
at org.lwjgl.opengl.GL30.glGenFramebuffers(GL30.java:1157)
at cii.g(SourceFile:640)
at bvd.b(SourceFile:98)
at bvd.a(SourceFile:56)
at bvd.<init>(SourceFile:42)
at ccy.a(SourceFile:254)
at ccy.a(SourceFile:109)
at ccy.a(SourceFile:73)
... 5 more

XenoMustache - your suggestion worked and I confirm it is now working again, thank you!