pgAdmin4 10-beta2 for Mac - error/freeze on start

Hi,

I installed pgAdmin4 1.0 beta2 onto Mac running OS X Yosemite 10.10.2 with
python 2.7.11

Running the app i get a partial app start up as shown below and then it
freezes:
<http://postgresql.nabble.com/file/n5909658/Screenshot_2016-06-27_23.png>

Also get the following console messages: which then continue to loop on the
final "OperationalError: database is locked:

Full Python path: "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload:/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python"
User Python path: ""
Webapp path: "/Applications/pgAdmin
4.app/Contents/Resources/web/pgAdmin4.py"
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
QObject::connect: Cannot connect
(null)::stateChanged(QNetworkSession::State) to
QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)
2016-06-27 23:41:54,509: ERROR pgadmin: Exception on
/static/css/font-mfizz.css [GET]
Traceback (most recent call last):
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1817, in wsgi_app
response = self.full_dispatch_request()
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1477, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1381, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1473, in full_dispatch_request
rv = self.preprocess_request()
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1666, in preprocess_request
rv = func()
File "/Applications/pgAdmin
4.app/Contents/Resources/web/pgadmin/__init__.py", line 244, in
before_request
login_user(user)
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask_security/utils.py",
line 61, in login_user
if not _login_user(user, remember): # pragma: no cover
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask_login.py", line
679, in login_user
session['user_id'] = user_id
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/werkzeug/local.py",
line 341, in __setitem__
self._get_current_object()[key] = value
File "/Applications/pgAdmin
4.app/Contents/Resources/web/pgadmin/utils/session.py", line 88, in
__setitem__
conn.execute(self._set_sql, (key, sqlite3.Binary(value)))
OperationalError: database is locked
2016-06-27 23:42:03,981: ERROR pgadmin: Exception on
/static/css/backgrid/backgrid-select-all.min.css [GET]
Traceback (most recent call last):
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1817, in wsgi_app
response = self.full_dispatch_request()
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1477, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1381, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1473, in full_dispatch_request
rv = self.preprocess_request()
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask/app.py", line
1666, in preprocess_request
rv = func()
File "/Applications/pgAdmin
4.app/Contents/Resources/web/pgadmin/__init__.py", line 244, in
before_request
login_user(user)
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask_security/utils.py",
line 61, in login_user
if not _login_user(user, remember): # pragma: no cover
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/flask_login.py", line
680, in login_user
session['_fresh'] = True
File "/Applications/pgAdmin
4.app/Contents/Resources/venv/lib/python/site-packages/werkzeug/local.py",
line 341, in __setitem__
self._get_current_object()[key] = value
File "/Applications/pgAdmin
4.app/Contents/Resources/web/pgadmin/utils/session.py", line 88, in
__setitem__
conn.execute(self._set_sql, (key, sqlite3.Binary(value)))
OperationalError: database is locked

Any help greatly appreciated.

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