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Fiddler is not loading anymore

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mark asked on 07 Mar 2021, 02:11 PM

All of sadden I am getting this when starting Fiddler. See attached.

 

Thanks

 

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Nick Iliev
Telerik team
answered on 09 Mar 2021, 07:30 AM

Hi Mark,

 

Have you tried the suggestions provided in the error screen (updating Windows and updating/reinstalling the NET framework)? It looks like something has changed your environment, so I would suggest trying the above (also suggested here) and trying to deinstall and reinstall the Fiddler app completely.

 

Regards,
Nick Iliev
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answered on 09 Mar 2021, 10:55 AM
The problem was with machine.config. I added proxy configuration to it hoping PBI will work with Fiddler. But probably did not do it right, so a number of programs stopped working. After restoring the file everything got back to normal.
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