Disable libman
Nguồn: asp.net core - Libman. Error LIB002 during build application - Stack Overflow So the reason, at least from what I've found, is that the library no longer exists or is not being seen by "cdnjs" provider. The best way to deal with this is to update the library to a library that "cdnjs" does support. If you in fact already have the library installed consider using the "Disable libman" section. The below instructions are being done on Visual Studio 2022, mileage may vary for other versions. If you have any issues consider using the "Re-add/Update" section. Disable libman Right click libman.json click on Disable Client-Side Libraries on Build Update your library In your libman.json move your cursor over to the left most side of the file but to the right of the line numbers A little light bulb should show up. Click on the down arrow You'll be greeted with a couple of options, Click on Check for updates (in my case I already have th