Very simple (so far) weldment that I'm working with and after editing I get this error message: "could not get a curve and a point to place the plane". Not the first time I've seen this. In this case it would be easy to start over but it would be good to know what I'm doing to cause this. And how to fix.
Scott,
I just opened the file and it was showing the same error
Edit the tube feature, and re-select the weldment profile and it's working OK
Make sure your weldment profile folder is correct.
Usually by default it's in ....\SOLIDWORKS\lang\english\Weldment profiles\