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Currently supported: All versions

1.8.9-11.15.1.2318 Forge does not want to start

IceGaming_TTV
in Support & Bug Reports

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Posted 
here is my error: Failed to download file, the file contents differ from what was expected.
Name: jopt-simple-4.6.jar
URL: https://libraries.minecraft.net/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar
Filename on disk: jopt-simple-4.6.jar
Path: C:\Users\Katte\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar
Exists: File. Please help
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https://forums.minecraftforge.net/topic/79035-189-111512318-forge-does-not-want-to-start/
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