IntelliJ IDE | .iml File lost or deleted

Question

Last week I was working on a Java EE project with IntelliJ IDE.

Today: As I started up my IntelliJ 2016.1 it gave me the error:

Error Loading Project

Answer 1

If you delete the *.iml file and the .idea folder and close the IntelliJ, it will be re-generated when you open the project again in the next time.