The exception occurs when clicking on Connection string in IIS Manager
"There was an error while performing this operation Details: Filename:\?D:\Work\kxbedbooker\web\Kxbnb\web.config Error: "
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Please add more information about your issue. – Amel Apr 08 '19 at 14:58
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You need to show your `web.config`. – Lex Li Apr 08 '19 at 15:43
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Check which version you are using for development and if framework is installed on machine. – sandeep sharma Apr 10 '19 at 06:27
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Does this answer your question? ["There was an error while performing this operation"](https://stackoverflow.com/questions/22199424/there-was-an-error-while-performing-this-operation) – Tawab Wakil Feb 07 '23 at 01:52
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Try This see if it work, the issue is may be the framework version.
1.Try to open IIs.
2.Go to the Application pool.
3.Open the Advanced Settings of Application Pool.
4.Change the .Net CLR version from 'V4.0' to 'No Managed Code'.
Enable Directory Browser as well in IIS.
sandeep sharma
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