MSChart not working on live server

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C#

ASP.NET

Hello,

I developed an MSChart in my web application. After uploading to server its giving an exception like

The temp directory in chart handler configuration is not accessible [D:\WWWRoot\tigererp.com\www\].


This is my app setting

add key="ChartImageHandler" value="storage=file;timeout=20;"

Can you helpe to avoid this exception.

Thank you