Failed to load shader: minecraft:shaders/post/entity_outline.json
kc: Invalid shaders/program/sobel.vsh: Couldn't compile vertex program: Vertex shader failed to compile with the following errors:
ERROR: 0:1: '' :  Version number not supported by GL2
ERROR: 1 compilation errors.  No code generated.
	at blt.a(SourceFile:67)
	at blq.<init>(SourceFile:132)
	at bls.<init>(SourceFile:29)
	at blr.a(SourceFile:268)
	at blr.a(SourceFile:138)
	at blr.a(SourceFile:86)
	at blr.<init>(SourceFile:52)
	at bfr.b(SourceFile:225)
	at ave.am(SourceFile:495)
	at ave.a(SourceFile:310)
	at net.minecraft.client.main.Main.main(SourceFile:124)