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spring-tool-suite

Unknown referenced nature: org.springframework.ide.eclipse.core.springnature

In STS 4, my Java 10 Spring Boot 2.1 project warns me:

Unknown referenced nature: org.springframework.ide.eclipse.core.springnature

How can I fix this?

Solution

  • This is a left-over from a prior STS brought-in by the .project file due to a known issue.

    To fix this, delete the project from your workspace(s) in STS, and remove the project meta-data from the file system:

      rm .project
  rm .classpath
  rm .factorypath
  rm -rf .settings

    When you re-import the project, STS 4 will build proper project meta-data.