If you see an error like "java: invalid source release" when you run a Java class in IntelliJ IDE then follow the below steps to fix this issue.
- Right Click on your Project/Module folder.
- Now select "Open Module Settings..."
- Next click on Project under Project Settings.
- Make sure that Langauge Level is lower or equal to the SDK (Java JDK) version you have selected.
- Click OK.
- Run your Java program again and it should work without any issues.
This is not an AI-generated article but is demonstrated by a human with IDEA IntelliJ 2023.02 version on a M1 Mac running macOS Sonoma 14.0.
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