custom profile shape does not allow curve to convert to mesh.blend Transforms

File Sources

Key	Source
This file was not created by transforming another file.

Name	Key	Supported	Transform	View
Profile (400px × 400px)	profile	No	None	None
Pinboard (280px × 210px)	pinboard	No	None	None
Thumbgrid (100px)	thumbgrid	No	None	None
Preview (220px)	preview	No	None	None
Workcard (526px)	workcard	No	None	None