Got this Attribute Error

[bobozar]

Hello,

I can't get to start the clearly server on ubuntu 16.04 /python 3.6.8. I got this error:

 from google.protobuf import symbol_database as _symbol_database
  File "/var/www/deddd/lib/python3.6/site-packages/google/protobuf/symbol_database.py", line 193, in <module>
    _DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'

I used this command to start the server:

clearly server amqp://localhost

[rsalmei]

Hey @bobozar

That's odd, it seems to be a new version of google's protobuf.
Please post the output of your pip list, in the same virtual env you installed clearly.

[bobozar]

Package Version

---

about-time 3.0.0
amqp 2.5.0
apns2 0.5.0
arrow 0.14.2
asn1crypto 0.24.0
Babel 2.7.0
backcall 0.1.0
backports.csv 1.0.7
basho-erlastic 2.1.1
billiard 3.6.0.0
boto3 1.9.187
botocore 1.12.187
cairocffi 1.0.2
CairoSVG 2.4.1
cassandra-driver 3.23.0
celery 4.3.0
certifi 2019.6.16
cffi 1.12.3
chardet 3.0.4
clearly 0.9.2
click 7.1.2
cryptography 2.7
cssselect2 0.2.1
DateTime 4.3
decorator 4.4.2
defusedxml 0.6.0
diff-match-patch 20181111
Django 2.2.3
django-celery-beat 1.5.0
django-celery-results 1.1.2
django-cors-headers 3.0.2
dnspython 1.16.0
docutils 0.14
elasticsearch 7.7.0
enum34 1.1.6
et-xmlfile 1.0.1
eventlet 0.25.0
flower 0.9.3
future 0.18.2
fuzzywuzzy 0.17.0
geoip2 2.9.0
geomet 0.1.2
greenlet 0.4.15
grpcio 1.28.1
gunicorn 19.9.0
h2 2.6.2
hpack 3.0.0
html5lib 1.0.1
http-ece 1.1.0
hyper 0.7.0
hyperframe 3.2.0
idna 2.8
ipython 7.14.0
ipython-genutils 0.2.0
jdcal 1.4.1
jedi 0.17.0
jmespath 0.9.4
jsonfield 2.0.2
kombu 4.6.3
Markdown 3.1.1
maxminddb 1.5.1
monotonic 1.5
mysqlclient 1.4.2.post1
ndg-httpsclient 0.5.1
numpy 1.16.4
odfpy 1.4.0
onesignal-sdk 1.1.0
openpyxl 2.6.3
pandas 0.25.3
parso 0.7.0
pdfkit 0.6.1
pdfrw 0.4
pexpect 4.8.0
phonenumbers 8.10.14
pickleshare 0.7.5
Pillow 6.1.0
pip 19.1.1
prompt-toolkit 3.0.5
protobuf 3.11.3
ptyprocess 0.6.0
py-vapid 1.7.0
pyArango 1.3.4
pyasn1 0.4.5
pycparser 2.19
Pygments 2.6.1
PyJWT 1.7.1
pyOpenSSL 19.0.0
pyotp 2.3.0
PyPDF2 1.26.0
Pyphen 0.9.5
PySocks 1.7.0
python-consul 1.1.0
python-crontab 2.3.8
python-dateutil 2.8.0
python-Levenshtein 0.12.0
python-memcached 1.59
python3-protobuf 2.5.0
pytz 2019.1
pywebpush 1.9.4
PyYAML 5.1.2
range-key-dict 1.1.0
redis 3.5.1
reportlab 3.5.23
requests 2.22.0
riak 2.7.0
s3transfer 0.2.1
setuptools 41.0.1
six 1.12.0
SQLAlchemy 1.3.17
sqlparse 0.3.0
tablib 0.13.0
tinycss2 1.0.2
tornado 5.1.1
traitlets 4.3.3
twilio 6.29.1
ua-parser 0.8.0
urllib3 1.25.3
user-agents 2.0
vine 1.3.0
wcwidth 0.1.9
webencodings 0.5.1
wheel 0.33.4
xhtml2pdf 0.2.3
xlrd 1.2.0
xlwt 1.3.0
zope.interface 5.1.0

[rsalmei]

It seems several people had this problem in other projects with protobuf, a search of that error got me a bunch of results.
I suggest you see this thread, particularly the last comment: protocolbuffers/protobuf#2350
I think your system may be finding two versions of that same protobuf package.
Let me know what you find.

[rsalmei]

Oh, you could also try the docker image, which is isolated from your system and also the recommended way to use clearly nowadays.

[bobozar]

I will look into it later tonight.

Also, I'm not using docker. :(

[bobozar]

I managed to clear the error by first uninstalling the package and run this:

pip install protobuf==3.0.0b2

After that, I did,

pip install --upgrade protobuf

Now, it's working but yet to show any task result.

[rsalmei]

Please start the server with clearly server --debug amqp://localhost.
Then you'll be able to see if the client successfully connect, just to start with baby steps.
Then please post the server log on screen.

[rsalmei]

Ok, please open a new issue if you need.