Question:Various operations fail in Plesk: Failed to read data from stream Process output
Symptoms
- When opening Plesk Backup Manager or removing a domain in Plesk, the operation fails with:
QuoteInternal Error: Failed to parse response. Reason: Failed to read data from stream Process output
- When creating a domain in Plesk, the operation fails with:
QuoteCreating physical hosting
phpinimng failed: Traceback (most recent call last):
...
ImportError: cannot import name 'sysconfig' from 'distutils' (/usr/lib/python3.7/distutils/__init__.py):
- The pmmcli utility fails with "ImportError":
#/usr/local/psa/admin/bin/pmmcli --help
...
ImportError: No module named libxml2#/usr/local/psa/admin/bin/pmmcli --help
...
ImportError: cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/__init__.py)Cause
/usr/bin/python3 is linked to a non-default Python version.
Resolution
1.Connect to the Plesk server via SSH.
2.Remove the invalid link:
#unlink /usr/bin/python3
3.Link /usr/bin/python3to /usr/bin/python3.6:
#ln -s /usr/bin/python3.6 /usr/bin/python3