Regex Class library class declaration error ?

In the program to convert Vietnamese from accented to unsigned in C#, use the code in:

https://www.dtmi.net/chuyen-tieng-vi...va-sql-server/
https://docs.microsoft.com/en-us/dot...x?view=net-5.0

I declare the library using System.Text.RegularExpressions; and added the library System.Text.RegularExpressions.dll but still got the error like in the picture https://www.mediafire.com/file/fwmaq...Regex.jpg/file

Please provide the code snippet itself, not a link to some unknown site.
The same - about your error message: provide the message itself, not a link to some picture somewhere in unknown site!

The program has an error with the library file System.Text.RegularExpressions.dll, the program is running fine, thank you

Quote:

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Originally Posted by dongtrien

The program has an error with the library file System.Text.RegularExpressions.dll, the program is running fine, thank you

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Did you catch the part about not giving us links to external sites? We've requested this multiple times now. Not sure why you seem to be unwilling to honor our requests.

It's corrupted the library file, now it's working