[sanddrag]

For the top error, you need to make a project file, and possible delete the current one (if there is one). Look in the Inventor help menu for info on project files. For the bottom left error, click yes, then save your assembly It is not an error really, just a notification. For the bottom right error, click Accept and then click the red plus sign on the top toolbar. This will start the recovery process. Go through the recovery menus. It will tell/show you which constraints are bad and give you an option to edit or delete. Personally, I would delete them, then try dragging stuff around, and reconstrain whatever moves that isn't supposed to.