Patching Linux System ( Ubuntu )

Patching Linux System ( Ubuntu )

Hello 
I have a problem with patching Linux on ManageEngine Endpoint Central , when I deploy missing patches on Ubuntu , I see this error : 

Deployment failed due to missing Linux package manager files. 


How can I fix this problem ? 

P.S : I currently use offline patch for patching systems. 

                  New to ADSelfService Plus?