 <p>I tried remove all the *.err but still getting the same error. I got one of the error in error log.</p> <blockquote> <p>[ERROR] InnoDB: Attempted to open a previously opened tablespace. Previous tablespace erp/brand uses space ID : 7 at filepath: ./erp/brand.ibd. Cannot open tablespace webdb1/system_user which uses space ID: 7 at filepath: ./webdb1/system_ user.ibd</p> </blockquote> <p>so I delete all the ib* files and it works.</p> <pre><code>rm -f *.err ib* </code></pre>