MissingMethodException using MS Solver Foundation v2.1

I am new to MS Solver Foundation and am trying to run the CompactQuasiNewtonSolver from C# but I am getting an error.

The only code I have inside my main method is this:

CompactQuasiNewtonSolver solver = new CompactQuasiNewtonSolver(1);

but I get the following error:

Unhandled Exception: System.MissingMet开发者_StackOverflow中文版hodException: Method not found: 'Void Microsoft.SolverFoundation.Solvers.CompactQuasiNewtonSolver..ctor(Int32)'. at VAR.Program.Main(String[] args)

Anyone has an idea why?

It looks like you are invoking the CompactQuasiNewtonSolver incorrectly. You should probably just use the constructor that takes zero arguments as described in the MSDN docs.