Getting an error when opening report "Object reference not set to an instance of an object."

Hi I am getting this error “Object reference not set to an instance of an object.” when i try to open a ssrs report in ax 2012?

How could this be solved?

Already tried restarting Sql server reporting services .but din’t work

Hello,

Please make sure that the SSRS report you are trying to view has been correctly deployed to the Report manager URL. You can deploy the same through AOT=> SSRS Reports=> Reports=> Select your report=> Right click and select Deploy Element.