I am not sure but the issue seems to be related with Django 1.8, I found a way around it by installing Django 1.7.7, just go to postorius/setup.py Line 42 replace 'django>=1.6' with 'django<1.8'. Then go to terminal and cd to postorius folder and type python setup.py develop Hopefully this should resolve the issue. -- You received this bug notification because you are a member of Mailman Coders, which is subscribed to Postorius. https://bugs.launchpad.net/bugs/1444080 Title: 'browserid' is not a valid tag library: ImportError raised loading django_browserid.templatetags.browserid: cannot import name generic_tag_compiler To manage notifications about this bug go to: https://bugs.launchpad.net/postorius/+bug/1444080/+subscriptions