Hello @Jacob Paixao Tonga COCOJA ,
Welcome to Microsoft Q&A forum.
Please kindly edit your question into English, so that we can better help you:)
Looks like the error message is "There is no editor available for … Make sure the application for the file type (.cs) is installed".
I would firstly suggest you try to repair and update Visual Studio, by opening VS Installer => Update/More => Repair.
If it doesn’t work, try following:
- Open that .cs file in notepad, prepare a new empty .cs file, copy and paste the code into that new empty .cs file, save it. Replace the original .cs file, check if this works.
- Using some editors for example Notepad++ to check if the file contains bad characters/incorrect line endings(a terminator)… and try to remove/correct them.
- Reset VS settings by opening "Developer Command Prompt for Visual Studio" => run
devenv /ResetSettings
command.
Best Regards,
Tianyu
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