I just got a server installed protocol lib version 3.7 and I keep getting this error whenever I join, there was another post based on this error but there wasn't really a solution I don't think.

Expected behavior
Let me join the server.

Screenshots

Version Info
Version: 3.7
Server Version: 1.7.10

Use Java 7 or maybe Java 8. You are using a 10 year old version...

Use Java 7 or maybe Java 8. You are using a 10 year old version...

i am using java 8

Please double check this. I dont think modules were available in Java 8 yet

Please double check this. I dont think modules were available in Java 8 yet

sorry you were correct I had installed it but I hadn't put it in my batch idk its really weird but thanks for your help!