Coder Trainee

Jan 9, 2026 · Backend Development

Fix ‘Cannot access org.springframework.boot.SpringApplication’ After IDEA Upgrade

After upgrading IntelliJ IDEA, a Java project fails with the error ‘cannot access org.springframework.boot.SpringApplication – class file has wrong version 61.0’, which can be resolved by adjusting Maven runner settings to delegate IDE build actions to Maven and restarting the IDE.