How to fix the Misssing SetUpFile After running Test-SPContentDatabase

Category        : MissingSetupFile

Error           : True

UpgradeBlocking : False

Message         : File [Features\AccessCheckerWebPart\AccessChecker.webpart] is referenced [1] times in the database [Dev_WSS_Content], but is not installed on the current farm. Please install any feature/solution which contains this file.

Remedy          : One or more setup files are referenced in the database [Dev_WSS_Content], but are not installed on the current farm. Please install any feature or solution which contains these files.

Category        : MissingSetupFile

Error           : True

UpgradeBlocking : False

Message         : File [Features\Atlassian.Confluence.SharePoint\dwp\ConfluenceFederatedResultsWebPart2007.webpart] is

   Referenced [3] times in the database [Dev_WSS_Content], but is not installed on the current farm. Please install any feature/solution which contains this file.

Remedy          : One or more setup files are referenced in the database [Dev_WSS_Content], but are not installed on the current farm. Please install any feature or solution which contains these files.

How to fix the issue?