NotJustFish

Since I updated to 1.7.10 10.13.0.1180 I've been getting the following error. I'm new to modding so can you guys help me by telling me how to fix it? http://pastebin.com/H7F21MDS EDIT: It always results in a build failed and the error in the link above is --stacktrace 'd

I'm getting the same error but it also occurs when I run gradlew clean in the command terminal