In addition, the content of "parser.log" file with and without the modification

With modification :
galaxy.web.framework ERROR 2014-04-30 14:11:52,222 Uncaught exception in exposed API method:
Traceback (most recent call last):
  File "/w/galaxy/galaxy4kevin/galaxy-dist/lib/galaxy/web/framework/__init__.py", line 199, in decorator
    rval = func( self, trans, *args, **kwargs)
  File "/w/galaxy/galaxy4kevin/galaxy-dist/lib/galaxy/webapps/galaxy/api/permissions.py", line 50, in create
    item = library.to_dict( view='element', value_mapper={ 'id' : trans.security.encode_id , 'root_folder_id' : trans.security.encode_id } )
  File "/w/galaxy/galaxy4kevin/galaxy-dist/lib/galaxy/model/__init__.py", line 1960, in to_dict
    rval[ 'root_folder_id' ] = 'F' + rval[ 'root_folder_id' ]
TypeError: cannot concatenate 'str' and 'int' objects

Without modification :
galaxy.web.framework ERROR 2014-04-30 14:16:56,853 Uncaught exception in exposed API method:
Traceback (most recent call last):
  File "/w/galaxy/galaxy4kevin/galaxy-dist/lib/galaxy/web/framework/__init__.py", line 199, in decorator
    rval = func( self, trans, *args, **kwargs)
  File "/w/galaxy/galaxy4kevin/galaxy-dist/lib/galaxy/webapps/galaxy/api/permissions.py", line 50, in create
    item = library.to_dict( view='element' )
  File "/w/galaxy/galaxy4kevin/galaxy-dist/lib/galaxy/model/__init__.py", line 1960, in to_dict
    rval[ 'root_folder_id' ] = 'F' + rval[ 'root_folder_id' ]
TypeError: cannot concatenate 'str' and 'int' objects

Kevin MURET
Intern at Station Biologique de Roscoff
ABiMS platform