About two hours ago I was playing minecraft with forge version 1.11-13.19.0.2148 just fine. Then, one hour ago, I decided to update forge. I actually installed three versions:
1.11-13.19.1.2189
1.11.2-13.20.0.2205
1.11.2-13.20.0.2206
Now minecraft won't launch, and throws exactly one error:
Interestingly enough, it launches fine without forge, and it even launches fine with forge version 1.8.9-11.15.1.1722. However, it won't launch for both the version I was using and the versions I installed today.
Any ideas?