Error :"The method or operation is not implemented." in Settings.settings

Question

I get this error message in VS2013: "The method or operation is not implemented." opening Settings.settings from solution explorer, same issue with properties/settings.. Any Hints?

StayOnTarget · Accepted Answer · 2020-04-20 18:38:30Z

23

Solved, the app.config contained mismatching values from the settings.setting, a restart of VS solved, asking what to do with mismatches.

edited Apr 20, 2020 at 18:38

StayOnTarget

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answered Nov 30, 2015 at 18:00

rok

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4 Comments

aloisdg Over a year ago

Also a simple restart fixed it for me on VS2015

eWilli Over a year ago

Also belongs to VS2017

MercifulGiraffe Over a year ago

For VS2019, I managed to get it open without a restart. All i had to do was open the app.config that had the settings in it, and after that the settings editor would open naturally.

htm11h Over a year ago

Project in VS2022 doesnt have an app.config

jyfa · Accepted Answer · 2021-02-06 22:48:34Z

For VS2019, I could also fix it like described by MercifulGiraffe But I also found another way, by running VS as administrator... I also had issues when I wanted to switch the framework version, it failed with the error message "Value does not fall within the expected range"... running it as administrator solved everything

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