Error <The report "report.stock.picking.list" already exists!>
I am trying to install v7.0 for the first time on a Win7 machine. Previously was installed a v.5.1.14 which has been desinstalled, and I use a new folder for the new version.
The installation went perfect, and I log admin, but when I try to install a new module, I get systematically the same long error message which ends with the sentence <the report="" "report.stock.picking.list"="" already="" exists!="">. I have tried many different modules, and get the same error, except the module Employee Directory which installs without error.
I am very annoyed because I can't use OpenERP. I am a confirmed user, I have been teaching it since version 5.0 four years ago. I like very much this software, but there is a tendency to push new versions of the software to the market before they are really ready. And I am surprised to not have the possibility to download previous versions.
Thank you for you help.