Error : Microsoft SharePoint Server State Service could not find a state service application bound to the default state service application proxy "state service" associated with the current web application. Or Unable to Render Chart Web part: Solution : It works for me 1. Remove "State Service" and also "State Service Proxy" along with associated data from Central Administration 2. Open SharePoint Power Shell run following commands: $serviceApp = New-SPStateServiceApplication -Name "<StateServiceName>" New-SPStateServiceDatabase -Name "<StateServiceDatabase>" -ServiceApplication $serviceApp New-SPStateServiceApplicationProxy -Name "<ApplicationProxyName>" -ServiceApplication $serviceApp -DefaultProxyGroup 3. Enable Session State , run following command: Enable-SPSessionStateService –DefaultProvision 4. Modify the web config of that specific web application <pages enableSessionState...