Page Server Error in '\' application - asp.net

Question

On my local machine it's working but it's not working on server
error is showing like this
Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
Parser Error Message: Unknown server tag 'asp:Chart'.
Source Error:

Answer 1

In the web.config section add the following:
<system.web>
<httpHandlers>
<add tagPrefix="asp"
namespace="System.Web.UI.DataVisualization.Charting"
assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</httpHandlers>
</system.web>

Answer 2

Check if the assembly is installed on the server, and check if your web.config on the server includes the control assembly and namespace in the <controls> section.
For instance
<add tagPrefix="asp"
namespace="System.Web.UI.DataVisualization.Charting"
assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
Check this link for more details, charts for MSDN - http://msdn.microsoft.com/en-us/library/vstudio/hh297118(v=vs.100).aspx

Answer 3

Try the below code:
just to remove the following entry from web.config section:
<httpHandlers>
<add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler,
System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral,PublicKeyToken=31bf3856ad364e35"
validate="false" />
</httpHandlers>
Also make sure that section has the following:
<handlers>
<remove name="ChartImageHandler" />
<add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST"
path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler,
System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</handlers>