I just reloaded Solidworks 2019 and attempted to open a parts file I created in Solidworks 2019.  However I get the following message: "Future version file opened.  Solidworks CAM will be deactivated for this file."  Not sure what this means since I created the file in the same software version, but I am not sure the service pack was the same.  When in this state, I can only view the part; I cannot make any sketches or manipulate any plane from the file.  The only thing I can do is take measurements from the part.  Can anyone assist?  Thank you in advance.

O'Neal