Hi,<br><br>&nbsp;I change mysql url setting in xwiki-2.pom from<br><div style="text-align: left;">&nbsp;&lt;xwiki.db.connection.url&gt;&quot;jdbc:mysql://localhost/xwiki?useServerPrepStmts=false&quot;&lt;/xwiki.db.connection.url&gt;
<br></div>
to&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;xwiki.db.connection.url&gt;&quot;jdbc:mysql://localhost/xwiki<div>?useUnicode=true&amp;amp;useServerPrepStmts=false&quot;&lt;/xwiki.db.connection.url&gt;<br><br>then build &#39;xwiki-web-standard&#39; by &#39;mvn install -Pxe,mysql &#39;,&nbsp; get eror:
<br><br>[INFO] Scanning for projects...<br>[INFO] ------------------------------------------------------------------------<br>[ERROR] BUILD ERROR<br>[INFO] ------------------------------------------------------------------------
<br>[INFO] Error building POM (may not be this project&#39;s POM).<br><br><br>Project ID: unknown:xwiki-web-standard<br>POM Location: E:\dev\xwiki\svnroot\xwiki-users\xwiki-platform-web\standard\pom.xml<br><br>Reason: Cannot read project model from interpolating filter of serialized version.
<br><br>I have build successfully before this modification.<br>Does pom file can not use the expression &#39;&amp;amp;&#39; ?</div>