Then I went to Project Structure, added a new JDK configuration, but with the same JDK as before (in my case 1.8.0_211) repeated step 4-5 I guess that in my case, the problem was that IDEA did not manage transition of Project Structure/JDK well after upgrade of IDEA Yes 2 No Olga...
Then I went to Project Structure, added a new JDK configuration, but with the same JDK as before (in my case 1.8.0_211) repeated step 4-5 I guess that in my case, the problem was that IDEA did not manage transition of Project Structure/JDK well after...