Well I have a problem wanting to open the forms of my project, previously if everything worked correctly, but since it works on a computer that was not mine, I took the project to my house, then I decided to return to my office computer, but when I try to open the files.cs that are the Windows forms, I marked the following error:
Could not resolve mscorlib for the .NET Framework version of destination '.NETFramework, Version = v4.0, Profile = Client'. This can occur if the target .NET Framework version is not installed or if the .NET Framework moniker has an incorrect format.