Help - pgAdmin4 fails with AttributeError: 'str' object has no attribute 'gettext'

[axelhuizinga]

Starting pgAdmin 4. Please navigate to http://127.0.0.1:5050 in your browser. 2018-03-25 19:41:11,128: ERROR werkzeug: Error on request: Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 270, in run_wsgi execute(self.server.app) File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 258, in execute application_iter = app(environ, start_response) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1997, in call return self.wsgi_app(environ, start_response) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1985, in wsgi_app response = self.handle_exception(e) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1540, in handle_exception reraise(exc_type, exc_value, tb) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1982, in wsgi_app response = self.full_dispatch_request() File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1607, in full_dispatch_request self.try_trigger_before_first_request_functions() File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1654, in try_trigger_before_first_request_functions func() File "/usr/share/pgadmin4/web/pgadmin/utils/init.py", line 43, in create_module_preference self.register_preferences() File "/usr/share/pgadmin4/web/pgadmin/browser/init.py", line 208, in register_preferences gettext("Show system objects?"), 'boolean', False, File "/usr/local/lib/python2.7/dist-packages/flask_babelex/init.py", line 624, in gettext return get_domain().gettext(*args, **kwargs) AttributeError: 'str' object has no attribute 'gettext'

[TaaviE]

I'm getting the same error with a different project.