Error when opening eclipse with Spring Tools Suite

Question

I am using the Spring Tool Suite for eclipse. When I launch the program. I get the following message:

An internal error occurred during: "Initializing Spring Tooling".

Attempted to beginRule: P/some.package.name, does not match outer scope rule: Beans Model Initialization

But I don't understand what it means

Thanks for your help

Answer 1

It will work if you clean your project. Eclipse-project-clean.

It works for me.