Unable to create or access workbook casche at C:\windows\temp\excel server

Error SS : Unable to create or access workbook casche at C:

Cause : The account that runs the application pool in which Excel Services Application runs might not have permissions to create a directory on the Excel Services Application server computer.

Solutions :

To fix this issue,

1. Go to ps.contoso.com server and navigate parent folder %windir%temp folder
2. Right click over temp folder select properties and select security Tab over properties dialog box
3. Find WSS_WPG(server\WSS_WPG) by Scroll down group and user names

4. Click on edit and select WSS_WPG(server\WSS_WPG)and give full permission which has read and execute permissions on the Temp folder

5. Give ok and close that, now problem will get fix.