KeyError: 'browser.forgot_password'

Good evening,

I am using pgadmin 3.6 on gentoo as a wsgi application (with apache) and
I get an error 500. I find this in the logs:

[Mon Jan 14 21:41:04.960251 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662] mod_wsgi (pid=2173): Exception occurred processing WSGI
script '/usr/share/pgadmin4/web/pgAdmin4.wsgi'.
[Mon Jan 14 21:41:04.963700 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662] Traceback (most recent call last):
[Mon Jan 14 21:41:04.963862 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 2309, in __call__
[Mon Jan 14 21:41:04.963876 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     return self.wsgi_app(environ, start_response)
[Mon Jan 14 21:41:04.963891 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 2295, in wsgi_app
[Mon Jan 14 21:41:04.963898 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     response = self.handle_exception(e)
[Mon Jan 14 21:41:04.963910 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 1741, in
handle_exception
[Mon Jan 14 21:41:04.963917 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     reraise(exc_type, exc_value, tb)
[Mon Jan 14 21:41:04.963928 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/_compat.py", line 35, in reraise
[Mon Jan 14 21:41:04.963935 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     raise value
[Mon Jan 14 21:41:04.963946 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app
[Mon Jan 14 21:41:04.963953 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     response = self.full_dispatch_request()
[Mon Jan 14 21:41:04.963975 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 1815, in
full_dispatch_request
[Mon Jan 14 21:41:04.963982 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     rv = self.handle_user_exception(e)
[Mon Jan 14 21:41:04.963993 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 1718, in
handle_user_exception
[Mon Jan 14 21:41:04.964000 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     reraise(exc_type, exc_value, tb)
[Mon Jan 14 21:41:04.964011 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/_compat.py", line 35, in reraise
[Mon Jan 14 21:41:04.964017 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     raise value
[Mon Jan 14 21:41:04.964028 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 1813, in
full_dispatch_request
[Mon Jan 14 21:41:04.964035 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     rv = self.dispatch_request()
[Mon Jan 14 21:41:04.964045 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 1799, in
dispatch_request
[Mon Jan 14 21:41:04.964052 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     return
self.view_functions[rule.endpoint](**req.view_args)
[Mon Jan 14 21:41:04.964063 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask_security/decorators.py", line
230, in wrapper
[Mon Jan 14 21:41:04.964069 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     return f(*args, **kwargs)
[Mon Jan 14 21:41:04.964080 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask_security/views.py", line 89,
in login
[Mon Jan 14 21:41:04.964086 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     **_ctx('login'))
[Mon Jan 14 21:41:04.964097 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask_security/core.py", line 528,
in render_template
[Mon Jan 14 21:41:04.964103 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     return render_template(*args, **kwargs)
[Mon Jan 14 21:41:04.964114 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/templating.py", line 135, in
render_template
[Mon Jan 14 21:41:04.964120 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     context, ctx.app)
[Mon Jan 14 21:41:04.964131 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/templating.py", line 117, in
_render
[Mon Jan 14 21:41:04.964137 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     rv = template.render(context)
[Mon Jan 14 21:41:04.964154 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/jinja2/asyncsupport.py", line 76, in
render
[Mon Jan 14 21:41:04.964165 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     return original_render(self, *args, **kwargs)
[Mon Jan 14 21:41:04.964195 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/jinja2/environment.py", line 1008,
in render
[Mon Jan 14 21:41:04.964204 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     return self.environment.handle_exception(exc_info,
True)
[Mon Jan 14 21:41:04.964223 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/jinja2/environment.py", line 780, in
handle_exception
[Mon Jan 14 21:41:04.964245 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     reraise(exc_type, exc_value, tb)
[Mon Jan 14 21:41:04.964259 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/jinja2/_compat.py", line 37, in reraise
[Mon Jan 14 21:41:04.964266 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     raise value.with_traceback(tb)
[Mon Jan 14 21:41:04.964287 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/share/pgadmin4/web/pgadmin/templates/security/login_user.html",
line 1, in top-level template code
[Mon Jan 14 21:41:04.964298 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     {% extends "security/panel.html" %}
[Mon Jan 14 21:41:04.964316 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/share/pgadmin4/web/pgadmin/templates/security/panel.html", line 2,
in top-level template code
[Mon Jan 14 21:41:04.964323 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     {% from "security/fields.html" import
render_field_with_errors %}
[Mon Jan 14 21:41:04.964334 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/share/pgadmin4/web/pgadmin/templates/base.html", line 70, in
top-level template code
[Mon Jan 14 21:41:04.964353 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     {% block body %}{% endblock %}
[Mon Jan 14 21:41:04.964364 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/share/pgadmin4/web/pgadmin/templates/security/panel.html", line
14, in block "body"
[Mon Jan 14 21:41:04.964370 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     {% block panel_body %}
[Mon Jan 14 21:41:04.964380 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/share/pgadmin4/web/pgadmin/templates/security/login_user.html",
line 23, in block "panel_body"
[Mon Jan 14 21:41:04.964387 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     <span class="help-block">{{ _('Forgotten your <a
href="%(url)s">password</a>?', url=url_for('browser.forgot_password'))
}}</span>
[Mon Jan 14 21:41:04.964397 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/helpers.py", line 330, in url_for
[Mon Jan 14 21:41:04.964403 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     appctx.app.inject_url_defaults(endpoint, values)
[Mon Jan 14 21:41:04.964413 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/flask/app.py", line 2042, in
inject_url_defaults
[Mon Jan 14 21:41:04.964419 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     func(endpoint, values)
[Mon Jan 14 21:41:04.964429 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File "/usr/share/pgadmin4/web/pgadmin/__init__.py",
line 635, in add_internal_version
[Mon Jan 14 21:41:04.964435 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     urls = [url for url in
app.url_map.iter_rules(endpoint)]
[Mon Jan 14 21:41:04.964445 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]   File
"/usr/lib64/python3.6/site-packages/werkzeug/routing.py", line 1205, in
iter_rules
[Mon Jan 14 21:41:04.964451 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662]     return iter(self._rules_by_endpoint[endpoint])
[Mon Jan 14 21:41:04.964478 2019] [wsgi:error] [pid 2173] [remote
127.0.0.1:60662] KeyError: 'browser.forgot_password'

The output of pip freeze is the following:

acme==0.30.0
alembic==0.9.7
asn1crypto==0.22.0
attrs==16.3.0
Babel==2.5.3
backports==1.0
backports-abc==0.5
backports.csv==1.0.5
bcrypt==3.1.3
beautifulsoup4==4.5.1
bleach==2.1.3
blinker==1.4
Bottleneck==1.0.0
bsddb3==6.2.4
cairocffi==0.8.0
certbot==0.30.0
certbot-apache==0.30.0
certifi==2018.4.16
cffi==1.11.4
chardet==3.0.4
click==6.7
ConfigArgParse==0.11.0
configobj==5.0.6
constantly==15.1.0
coverage==4.2
cryptography==2.2.2
cycler==0.10.0
Cython==0.25.2
decorator==4.2.1
defusedxml==0.5.0
docker==2.7.0
docker-pycreds==0.3.0
docutils==0.13.1
entrypoints==0.2.3
extras==1.0.0
fail2ban==0.10.4
fixtures==3.0.0
Flask==1.0.2
Flask-Babel==0.11.2
Flask-BabelEx==0.9.3
Flask-Gravatar==0.5.0
Flask-HTMLmin==1.3.2
Flask-Login==0.3.2
Flask-Mail==0.9.1
Flask-Migrate==2.1.1
Flask-Paranoid==0.2.0
Flask-Principal==0.4.0
Flask-Security==3.0.0
Flask-SQLAlchemy==2.3.2
Flask-WTF==0.14.2
funcsigs==1.0.2
future==0.16.0
GDAL==2.3.0
gdbus-codegen==2.56.4
gemato==14.0
gentoolkit==0.4.2.post1
gevent==1.2.1
greenlet==0.4.12
html5lib==1.0.1
htmlmin==0.1.12
httplib2==0.10.3
idna==2.5
incremental==16.10.1
iotop==0.6
ipaddr==2.1.11
ipykernel==4.6.1
ipyparallel==6.0.2
ipython==5.4.1
ipython-genutils==0.2.0
ipywidgets==7.0.0
isodate==0.5.4
itsdangerous==0.24
java-config==2.2.0
jedi==0.10.2
Jinja2==2.10
josepy==1.1.0
jsonschema==2.6.0
jupyter==1.1.0
jupyter-client==5.1.0
jupyter-console==5.1.0
jupyter-core==4.4.0
kiwisolver==1.0.1
layman==2.4.2
lensfun==0.3.2
libvirt-python==4.9.0
linecache2==1.0.0
lxml==4.2.5
Mako==1.0.6
Markdown==2.6.8
MarkupSafe==0.23
matplotlib==2.2.2
meson==0.48.2
mimeparse==1.6.0
mirrorselect==2.2.3
mistune==0.8.3
mock==2.0.0
nbconvert==5.2.1
nbformat==4.4.0
ndg-httpsclient==0.4.0
nose==1.3.7
notebook==5.0.0
numexpr==2.6.1
numpy==1.14.5
olefile==0.44
OWSLib==0.16.0
pandas==0.19.1
pandocfilters==1.4.2
paramiko==2.4.2
parsedatetime==2.4
passlib==1.7.1
path.py==8.1.2
pathlib2==2.3.0
pbr==4.2.0
pexpect==4.2.1
pickleshare==0.7.4
Pillow==5.3.0
ply==3.9
portage==2.3.51
prompt-toolkit==1.0.15
psutil==5.4.7
psycopg2==2.7.4
ptyprocess==0.5.1
py==1.4.34
pyasn1==0.2.3
pyasn1-modules==0.0.8
pyblake2==1.1.2
pycairo==1.17.0
pycparser==2.14
pycrypto==2.6.1
pycurl==7.43.0
Pygments==2.2.0
pygobject==3.28.3
PyNaCl==1.2.1
PyOpenGL==3.1.0
pyOpenSSL==17.5.0
pyparsing==2.2.0
pyproj==1.9.5.1
pyRFC3339==1.0
pyrsistent==0.14.2
PySocks==1.6.7
pytest==3.2.2
pytest-runner==2.6.2
python-augeas==0.5.0
python-dateutil==2.7.2
python-editor==1.0.3
python-mimeparse==1.6.0
python-subunit==1.2.0
pytz==2018.4
pyxattr==0.6.0
PyYAML==3.13
pyzmq==16.0.2
qtconsole==4.3.1
rdflib==4.2.2
regex==2017.4.5
reportlab==3.3.0
requests==2.18.4
requests-toolbelt==0.8.0
rfc3987==1.3.7
scandir==1.7
scikit-learn==0.19.0
scipy==0.19.1
scrypt==0.8.0
service-identity==16.0.0
setuptools-scm==1.15.6
simplegeneric==0.8.1
simplejson==3.13.2
sip==4.19.13
six==1.11.0
speaklater==1.3
SQLAlchemy==1.2.7
sqlparse==0.2.4
sshtunnel==0.1.3
ssl-fetch==0.4
strict-rfc3339==0.6
systemd-python==233
terminado==0.5
testpath==0.1
testtools==2.3.0
tornado==4.5.3
traceback2==1.4.0
traitlets==4.3.2
Twisted==16.6.0
unittest2==1.1.0
urllib3==1.22
vcversioner==2.16.0.0
versioneer==0.16
virtualenv==15.1.0
wcwidth==0.1.7
webapp-config==1.55
webcolors==1.5
webencodings==0.5.1
websocket-client==0.48.0
Werkzeug==0.14.1
widgetsnbextension==3.0.0
WTForms==2.1
xcffib==0.5.1
youtube-dl==2019.1.10
zope.component==4.3.0
zope.event==4.2.0
zope.interface==4.4.3

Does anybody has an idea about this problem ?

Thanks in advance,

Best regards.

François Valenduc