IDEA: javac: source release 1.7 requires target release 1.7

Question

When running a JUnit test, using IntelliJ IDEA, I get

How can I correc

Answer 1

If all the previous solutions haven't worked for you (which was my case), you can delete intellij config files:

• project_directory/.idea/compiler.xml
• project_directory/.idea/encodings.xml
• project_directory/.idea/misc.xml
• project_directory/.idea/modules.xml
• project_directory/.idea/vcs.xml
• project_directory/.idea/workspace.xml
• etc.

Intellij will regenerate new ones later. However, BE CAREFUL, this will also delete all intellij configuration made on the projet (i.e: configuration of debug mode, ...)