Export translation in OpenErp 6.1.1 hangs in report_aeroo\translate.py

Ubuntu 10.10 - Openerp 6.1.1

When i got to Settings » Translations » Import/Export Translation

i get the error:

AttributeError: 'Registry' object has no attribute 'obj_pool'
report_aeroo/translate.py", line 44, in extend_trans_generate
    l = pool.obj_pool.items()

Server Traceback (most recent call last):
  File "/home/diogo/Workspace61/openerp611/openerp/addons/web/common/http.py", line 592, in send
    result = openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/home/diogo/Workspace61/openerp611/openerp/netsvc.py", line 360, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/home/diogo/Workspace61/openerp611/openerp/service/web_services.py", line 572, in dispatch
    res = fn(db, uid, *params)
  File "/home/diogo/Workspace61/openerp611/openerp/osv/osv.py", line 167, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/home/diogo/Workspace61/openerp611/openerp/osv/osv.py", line 121, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/diogo/Workspace61/openerp611/openerp/osv/osv.py", line 176, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/diogo/Workspace61/openerp611/openerp/osv/osv.py", line 164, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/diogo/Workspace61/openerp611/openerp/addons/base/module/wizard/base_export_language.py", line 50, in act_getfile
    tools.trans_export(this.lang, mods, buf, this.format, cr)
  File "/home/diogo/Workspace61/openerp611/openerp/tools/translate.py", line 468, in trans_export
    trans = trans_generate(lang, modules, cr)
  File "/home/diogo/Workspace61/openerp611/openerp/addons/report_aeroo/translate.py", line 44, in extend_trans_generate
    l = pool.obj_pool.items()
AttributeError: 'Registry' object has no attribute 'obj_pool'