Error configuring DAO with .NET 4. Cause: Ambiguous match found. about mybatisnet HOT 6 OPEN

i find it,also

Any update on this issue? Since we are also facing the same issue and now we 
need to update our framework to 4.0.

[deleted comment]

I have noticed that the error is within the Castle.DynamicProxy dll.  More 
specifically, the class file in that dll: 
Castle.DynamicProxy.Builder.CodeBuilder.SimpleAST.LockBlockExpression invokes 
with reflection the method System.Threading.Monitor.Enter without specifying 
(new in .net 4.0) the overload arguments. Changing that line of code to: 
gen.Emit(OpCodes.Call, typeof(Monitor).GetMethod("Enter", new Type[] { 
typeof(object) })); should solve the problem.

In the mean time, you can set the target framework in the properties window for 
your project to .net 3.5 and that will solve the issue as well.

Is there any chance for newer version in the nearing future?