Thank you for your help. I Think I entered product.product.tree into the field product.category.search which was empty before. When I delete the field "virtual_available", as you recommended, the system comes up with the same error but the field is now "price". So I would have to delete a few fields. to come back to my view :-(, but I will try that after saving my starting view.....

I'm having a similar problem that i've referred to here: https://www.odoo.com/forum/Help-1/question/ImportError-No-module-named-product-55590 and here (main thread regarding the module from v7): https://www.odoo.com/forum/Help-1/question/OpenERP-7-How-can-I-add-images-in-saleoderline-or-in-treeview-generally-483 my XML is as follows (in /odoo/addons/product_image_SO/product_view.xml): product.product.treeproduct.product and i'm getting the following error message: Error details: Field `virtual_available` does not exist Error context: View `product.product.tree` [view_id: 2129, xml_id: n/a, model: product.product, parent_id: 256]" while parsing /opt/odoo/odoo-server/addons/product_image_SO/product_view.xml:4, near product.product.treeproduct.product I believe it may be due to incorrect XML syntax, however I am currently stuck on this error message. Any input or insight would be very much appreciated.