Why doesn't IDEA load dependencies?

Question

IntelliJ IDEA

I installed an idea on ubuntu, I'm trying to create a simple project on it, in pom I put the perrent spring boot and standard dependencies for the web. On Windows, idea itself offered to enable auto-import, then decided not to offer it. I set it myself in the settings to reload the project after changes in the build script and in maven I set it to automatically load the sources of docks and annotations. I also set automatic loading of indexes. But when using spring butovy annotations, he does not see them. That is, through alt + entr it is impossible to import them.

Answer 1

In short, just demolishing Idea and putting it on a new one helped. Most likely, the settings rally occurred due to the fact that I incorrectly closed the virtual machine

Answer 2

Here is the solution:
When adding dependencies for JDBC to maven, the version is red. How to decide?