Cannot retrieve folders from 'folder'.
This error occurs because MigrationWiz failed to gather the list of all the folders. By default, MigrationWiz allows one hour to initialize the migration but, depending on the number of existing folders, this may take much longer than that.
The best solution is to increase the timeout by using the Advanced Option "InitializationTimeout". This value is in milliseconds. For example:
- InitializationTimeout=7200000 will increase the timeout to 2 hours.
- InitializationTimeout=14400000 will increase the timeout to 4 hours.
- InitializationTimeout=21600000 will increase the timeout to 6 hours.
- InitializationTimeout=28800000 will increase the timeout to 8 hours.
Review KB005100 to learn how to set an Advanced Support Option for your project or item(s).