1, open the original DWG file. The layer where the drawing is located needs to be opened and unlocked. Save it as a DXF file, close CAD, then open the saved DXF file and save it as a DWG file. As shown in the figure below:

2. Open the original DWG file, and the layer where the drawing is located needs to be opened and unlocked. Create a new blank DWG file, copy the graphics from the original DWG file into the blank DWG file, save it as a DXF file, close CAD, then open the saved DXF file and save it as a DWG file. As shown in the following figure

3. If the prompt "DXF input is invalid or incomplete" appears when opening the DXF file, please enter:? Review, then enter y, press enter, and solve according to the method of 1 after verification.