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copied!<p><strong>This issue has been fixed in m2e 1.5.0 which is available for Eclipse Kepler (4.3) and Luna (4.4)</strong></p> <p>Please see <a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=374332#c14" rel="noreferrer">https://bugs.eclipse.org/bugs/show_bug.cgi?id=374332#c14</a></p> <p>The problem is caused by the fact that STS (the Spring IDE/Eclipse), as well Eclipse and other Eclipse based IDE's, use the m2e(clipse) plugin but that eclipse:eclipse has been probably been run on the project. When m2e encounters a "var" .classpath entry, it throws this error. </p> <p>The update sites are specified at the following url: <br/> <a href="http://eclipse.org/m2e/m2e-downloads.html" rel="noreferrer">http://eclipse.org/m2e/m2e-downloads.html</a></p> <p>If you can't use m2e 1.5.0 for any reason, then : </p> <ol> <li><p>Disable the maven nature for the project (via the right-click menu)</p></li> <li><p>Run <code>mvn eclipse:clean</code> (while your project is <em>open</em> in STS/eclipse). Depending on the timing, you might need to do a refresh or two on the project before re-enabling the maven nature. You should be able to see that your project has lost it's Maven nature. (The <code>eclipse:clean</code> goal just deletes the <code>.project</code>, <code>.classpath</code> and <code>.settings/</code> files/directories. You can also just remove those files (again <em>while the project is open</em>) instead of running <code>mvn eclipse:clean</code>.)</p></li> <li><p>Re-enable the maven nature.<br> (Most of the time, this can be done by right-clicking on the project in question in the package explorer pane, and then choosing 'Configure'-> 'Convert to Maven Project') </p></li> </ol>

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