there is no Assembly4 assembly container in your file ! But the structure of an assembly is still there (Constrains group for example), which means you did something very unusual (may-be you deleted the initial Assembly but not its content).Routerworks wrote: ↑Sun Nov 28, 2021 2:45 pm When I click on an assembly body the Link lights up however, if I then click on "Link" I get the error.
What you can try to do to save your project is to create a new Part (yellow icon) and call it "Assembly". Then, in the properties panel, change the "Type" to "Assembly". Then move all the stuff that is in this file into that assembly (in the tree view: select everything, and drag them into the assembly)