SharePoint 2010 Chart Web Part Issue with Service State 

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="true"

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