I am getting this error when trying to add "Warehouse Management" App. I was able to install the "Accounting" App without a problem prior to this. Similar Error (if not the same) when trying to install "MRP" App.

OpenERP Server Error Client Traceback (most recent call last): File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\http.py", line 204, in dispatch File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\controllers\main.py", line 1133, in call_button File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\controllers\main.py", line 1121, in _call_kw File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\session.py", line 43, in proxy File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\session.py", line 31, in proxy_method File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\session.py", line 104, in send

Server Traceback (most recent call last): File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\session.py", line 90, in send File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\netsvc.py", line 293, in dispatch_rpc File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\service\web_services.py", line 626, in dispatch File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\osv\osv.py", line 188, in execute_kw File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\osv\osv.py", line 131, in wrapper File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\osv\osv.py", line 197, in execute File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\osv\osv.py", line 185, in execute_cr File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\base\module\module.py", line 706, in install_from_urls File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\base\module\module.py", line 617, in update_list File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\web\http.py", line 576, in load_addons File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\modules\module.py", line 133, in load_module File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\mrp__init__.py", line 26, in <module> File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\mrp\report__init__.py", line 25, in <module> File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server\openerp\addons\mrp\report\bom_structure.py", line 61, in <module> File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\report\report_sxw.py", line 392, in __init__ File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\report\interface.py", line 65, in __init__ File "C:\Program Files (x86)\OpenERP 7.0-20130507-231031\Server\server.\openerp\report\interface.py", line 45, in __init__ AssertionError: The report "report.bom.structure" already exists!