In the Groovy/Grails Tool Suite, when one creates a Grails 2.2 project, one have to manually change the Groovy compiler version to 2.0 (error: Attachment ). After doing this, there's a red exclamation mark next to the project name in the project explorer window. What does the red exclamation mark mean? How can I get rid of the error? Re-compiling doesn't make it go away even though there seem to be no errors.
Red exclamation mark next to project name in project explorer Page Title Module
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