IntelliJ - fix Maven dependency

Steps to go through fixing Maven dependency in IntelliJ -

1. Check the POM - see if the dependency is defined properly
2. Go to File --> Project Structure... and see if which Library is throwing up error
3. Navigation to the Class file that the Library is pointing to, e.g. (in your Maven dir)

   [user_dir]/.m2/repository/[dependency]/[dependency_version]/... 

4. Delete the Library with error in Project Structure.
5. In command prompt, navigate to the directory of the project/Intellij module, run

   mvn install 

   to force download the dependencies
6. In IntelliJ, top left hand corner, go to "Packages" view
7. Right-click on the module --> Maven --> Reimport
8. Go to File --> Project Structure... to see if error persist