UndefinedError: <trac.perm.PermissionCache object at 0x7f20cdf171e0> has no member named "permissions"

[wachkama@…]

I am getting errors when i install simplemultiproject version 0.50. Followed the installation process and plugin was succesfuly installed but it wount start. getting this errors.

1. Trac detected an internal error:

   UndefinedError: <trac.perm.PermissionCache object at 0x7f20cdf171e0> has no member named "permissions"
   

2. Most recent call last:

   File "/var/trac/eggs/SimpleMultiProject-0.5.0-py2.7.egg-tmp/simplemultiproject/templates/simplemultiproject_adminpanel.html", line 66, in <Expression u"'PROJECT_ADMIN' in perm.permissions()">
     <form py:if="'PROJECT_ADMIN' in perm.permissions()" class="addnew" id="simplemultiproject" action="" method="post">
   

3. Trace back error.

   [Fri Feb 26 12:13:09.729123 2016] [:error] [pid 1692:tid 139669408818944] /var/trac/sites/Project/plugins/SimpleMultiProject-0.5.0-py2.7.egg/simplemultiproject/admin.py:166: RuntimeWarning: Parent module 'simplemultiproject' not found while handling absolute import
   

[Jun Omae]

PluginIssue (​th:SimpleMultiProjectPlugin).

[Jun Omae]

That plugin uses deprecated PermissionCache.permissions method. The deprecated method has been removed in Trac 1.1.2 ([12606#file2], #11494).

[Ryan J Ollos]

Fixed in ​[th 15392].