Unable to start migration: urlopen error [Errno 99] Cannot assign requested address

Created:

2016-12-12 03:42:13 UTC

Modified:

2017-08-08 13:11:52 UTC

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Unable to start migration: urlopen error [Errno 99] Cannot assign requested address

Applicable to:

  • Plesk 12.5 for Linux

Symptoms

When trying to start a migration the following error appears:

urlopen error [Errno 99] Cannot assign requested address

Cause

This error occurs when migrator tries to check connection to target host. It takes the first IP from IP_Addresses table and tries to establish connection. The problem is that the first IP does not exit anymore on the server.

Resolution

In order to fix the issue please add this IP back, or remove it from Tools & Settings > IP addresses after clicking Reread

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