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Article ID: 119496, created on Jan 7, 2014, last review on May 2, 2014

  • Applies to:
  • Plesk Automation 11.5


PPA migrator utility fails with the following error:

~# ppa-transfer generate-migration-list config.ini

[ERROR] parallels.plesks_migrator.migrator || ABORT (by exception): fetch info from PPA
[ERROR] parallels || Unexpected error: 'invalid arguments passed to constructor', migration is aborted. See the traceback above for more information.


The issue is caused by several unsuccessful migration attempts, as a result migration-session directory contains invalid data.


To fix the issue it is needed to remove all the files from /etc/ppa-migrator/migration-session directory:

rm -r /etc/ppa-migrator/migration-session

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