Missing method exists in DLL

Question

It seems I'm missing the method LambdaExpression.CompileToMethod under the namespace System.Linq.Expressions that exists in the referenced assembly and I cannot understand why.

When I'm including this method in my codebase:

public static void CompileLambdaToMethod(LambdaExpression lambdaExpression, MethodBuilder methodBuilder)
{
    lambdaExpression.CompileToMethod(methodBuilder);
}

Visual Studio says the method CompileToMethod doesn't exists and I get the following error when compiling:

Error CS1061 'LambdaExpression' does not contain a definition for 'CompileToMethod'

I also cannot find the method if I follow the definition of LamdaExpression in Visual Studio.

The method does exist in the documentation: https://msdn.microsoft.com/en-us/library/dd728258(v=vs.110).aspx

Also, the method exists in the DLL if I inspect the DLL that I'm referencing by following the reference in Visual Studio and opening the abosolute path (at the top inside the #region Assembly) in dotPeek.

What am I missing?

Sounds like it could be a mismatch in target framework versions between the DLL and your project. Can you check if this is the case? — Lars Kristensen, Jun 23 '16 at 08:55
Did you check the Target framework in project properties ? Cause this method does exist for >= .net 4.0 only — Raphaël Althaus, Jun 23 '16 at 08:58

Missing method exists in DLL

0 Answers0