Started by
kim john un
on
Topic category: Help with Minecraft modding (Java Edition)
Basically when I click run, It says "Your work space contains mod elements that dont work properly" heres a screenshot 
Also, I dont know how to export it as a jar file so i can use it
Workspace -> Export to JAR
For the build bug/error, redownload and reinstall MCreator. This issue was fixed in a patch update.