The permission granted to user are insufficient for performing this operation - Cannot deploy reports from SQL Server Data Tools to Reporting Services

Are you experiencing this error when trying to deploy reports from SQL Server Data Tools to Reporting Services site?

As it says, it clearly indicates that you have no permission to deploy the created report. Of course, you need to check and see permission granted to you, but before that, try to open SQL Server Data Tools with administrator privileges and see;

After that, you should be able reports.