If you experiencing problems while trying to run JoinerCAD and getting error message which says "JoinerCAD has a problem with Fusion 360 NULastDisplayLayout.xml file. For proper JoinerCAD work, please delete this file. How to do this, click here." please follow steps below:

1. Close Fusion 360

2. Open Windows Explorer and navigate to C:\Users\UserName\AppData\Roaming\Autodesk\Neutron Platform\Options\XYZ_Folder_name 

3. Delete NULastDisplayLayout.xml file. 

4. Start Fusion 360 again.