Solution: Error: java: Invalid source release: 12 --Rookie Xiaohui

Solution: Error: java: invalid source release: 12

1. The spring cloud project was launched. Encounter problems:

Second, there are two solutions.

First position:

1. Project Structure
   
2. Modules select your project (and parent project, if any) -> select 8 (your jdk version) as shown in the figure:

Second position

1. Setting:

2. Find java compiler->Target bytecode version and change it to 8 (your jdk version, also pay attention to the parent project):
3. Restart