Since I've updated my Galaxy version I'm
unable to import any dataset from my history into my data library. It
returns a message of e.g. "Invalid item id (1464) specified".
I then did a complete new test installation to make sure that this
problem wasn't because of the update. But the error still remains. I've
included a screen shot in which the error is reported.
When I queried the database the dataset id does exist in the history_dataset_association table.
I went through the paster.log file and found the following
warning message: Unknown library item type: <class
'galaxy.model.
HistoryDatasetAssociation'>. Can it be that this class is not loaded or found?