1. Open the .csproj file in the project file with vs
2. After opening, press ctrl+s, or save all in the upper left menu, and a save box for entering .sln will appear.
Problem solved.
1. Open the .csproj file in the project file with vs
2. After opening, press ctrl+s, or save all in the upper left menu, and a save box for entering .sln will appear.
Problem solved.