score:21

Accepted answer

previously it was like this in web.config

<add key="chartimagehandler" value="storage=file;timeout=20; dir=c:\tempimagefiles/;" />

i removed the directory location 

<add key="chartimagehandler" value="storage=file;timeout=20;" />

and the problem solved.

score:6

check if that folder exists on your server and give read/write permission to the user of the application pool your site is running for that folder.

or you can simple move that temp folder inside the site root es: "~/temp" and configure highchart to use that folder.

or you can change your chartimagehandler from

<add key="chartimagehandler" value="storage=file;timeout=20;dir=c:\tempimagefiles\;" />

to

<add key="chartimagehandler" value="storage=file;timeout=20;" />

so he will use the default windows temp directory


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