Mod causes FMLFIngerprintViolationEvent [1.11.2]

when loading the mod the following error occurs (example):
`[Client thread/ERROR] [devworld]: The mod devworld is expecting signature @FINGERPRINT@ for source devworld-1.11-b15-client.jar, however there is no signature matching that description`

seems like you forgot to add the replace command to the build.gradle file ;)