PHP Catchable fatal error: Object of class ClassDefinition could not be converted to string Concrete.php
<p>On pimcore Version: 3.1.1 (Build: 3543) I get the following error in php.log but no errors in pimcore debug.log.</p>

<pre><code>[29-Jan-2016 16:28:13 Europe/Berlin] PHP Catchable fatal error:  Object of class Pimcore\Model\Object\ClassDefinition could not be converted to string in /opt/bitnami/apps/pimcore/htdocs/pimcore/models/Webservice/Data/Object/Concrete.php on line 104
</code></pre>

<p>I get HTTP 500 Internal server error response from a custom WebService.</p>

<p>How can I investigate it ?Is there already a resolution for this error?</p>

<p>The pimcore source code line that generates error (Concrete.php) is the following:</p>

<pre><code>throw new \Exception("No element [ " . $element-&gt;name . " ] of type [ " . $element-&gt;type . " ] found in class definition " . $class);
</code></pre>

<p>So it seems due to a wrong error-handling.</p>