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Compilation Error not displaying in Eclipse

I am using Mac Yosemite and Eclipse Luna.

I have successfully imported Maven projects into my workspace and the projects were running without any errors. The issue is Eclipse is not showing compilation error in editor or in project explorer.

Default Builders is "Maven Project Builder".

字符串a = 10; --eclipse没有显示任何错误

生成器

Right click a project in the project explorer and choose Maven > Update project , or press
Alt + F5 . Select all the relevant projects and Ok. This automatically cleans and updates the workspace.

  1. Right click on your project and go to Properties.
  2. Goto Java Build Path and then select Source tab.
  3. In this Tab there should be an entry with yourProjectName/src .
  4. Expand this and in the Excluded-property, remove everything, ie, it should not exclude anything.
  5. Remove any other entries in Source tab only yourProjectName/src should reside.

After this you may see errors in your project in package explorer. Expand src folder and remove the package that is showing the error.

It helped me this way.

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