After importing Eclipse project: Error:(29, 10) java: annotations are not supported in -source 1.3 Follow

I imported an Eclipse project into Intellij IDEA using the steps provided in documentation:


clicked Import Project on the Welcome screen
In the dialog that opens, selected the necessary Eclipse project
selected Import project from external model
then selected Eclipse


Now when I go to 'Run App', I get the following error:


Error42, 23) java: generics are not supported in -source 1.3
  (use -source 5 or higher to enable generics)


I do not think my project is using gradle, maven or another build system. I believe it is using the default Eclipse build system. So what steps can I take to adjust the source level in intellij IDEA?