Minecraft Forge doesn't start?

Si
2

I tried installing Minecraft Forge. I just got this error message when I started:

A file could not be downloaded; the file content is different from what was expected.
Name: netty-all-4.0.15.Final.jar
URL: https://libraries.minecraft.net/io/netty/netty-all/4.0.15.Final/netty-all-4.0.15.Final.jar
File name: netty-all-4.0.15.Final.jar
Path: C: \ Users \ anton \ AppData \ Roaming \ .minecraft \ libraries \ io \ netty \ netty-all \ 4.0.15.Final \ netty-all-4.0.15.Final.jar
Exists: File

Does anyone have any idea how I can fix this?

Dr

Did you start the associated "normal" Minecraft version before installing Forge?

Si

Yes

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