how do i fix this i tried every thing even going to the packacge folder and trying to import it from there
Perhaps the part here towards the bottom about flushing??
Extra unwanted packages in new projects (collab, testing, rider and other junk):
About the fastest way I have found to make a project and avoid all this noise is to create the project, then as soon as you see the files appear, FORCE-STOP (hard-kill) Unity (with the Activity Manager or Task Manager), then go hand-edit the Packages/manifest.json file as outlined in the above post, then reopen Unity.
Sometimes the package system gets borked from all this unnecessary churn and requires the package cache to be cleared:
i tried what you sayed it didnt work 
the problem is that the package cant be decompressed