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[1.12.2] > There are no mappings for MC 1.12.2

hovac
in Modder Support

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Posted

Whenever I attempt to run my 1.12.2 mod with Mixins it errors and says  

> There are no mappings for MC 1.12.2

If I remove the mappings = "stable_39" it errors and says 

MISSING REPLACEMENT DATA FOR MAPPING_CHANNEL

How can I fix this problem?
I dont have it when I dont use Mixins

 

Additional information:
Gradle version: 4.9
ForgeGradle version: 2.1-SNAPSHOT
build.gradle file: https://pastebin.com/67KE54WL

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https://forums.minecraftforge.net/topic/101194-1122-there-are-no-mappings-for-mc-1122/
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