I upgraded my project from 1.12.2 to 1.15.2. When I tried to run the project, I encountered this problem. How can I solve it?
MCreator issue tracker has been migrated to GitHub.
Existing tickets have been migrated to GitHub. Please open new tickets on the GitHub tracker instead. If you do not have a GitHub account, all feature requests and bug reports from forums are still considered and checked by the maintainers.