There is no argument given that corresponds to the required formal parameter 'info'

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VS2015

I have a VS C# project (project1) that compiles and works fine without any errors. I have created a second project (project2) that adds a number of files as links from the first project. I've added all the necessary references etc. I've created a conditional compilation symbol for project2. Project2 is giving one error:
There is no argument given that corresponds to the required formal parameter 'info' of 'Curve.Curve(SerializationInfo, StreamingContext)'

 public CurveCollection(List<Rhino.Geometry.Curve> curves) 
{
     this.CurveList = this.CurveList;            
}

I've searched through the forums to try and find why this error is being caused, and I'm at a loss.
Can someone shed some light on what I may be missing?

What I have tried:

I've searched through the forums to try and find why this error is being caused, and I'm at a loss. I've tried relinking the file but that didn't solve the issue.

Posted 8-Aug-18 13:00pm

Member 8571531

Updated 8-Aug-18 19:27pm

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Gerry Schmitz · Answer 1 · 2018-08-08T19:27:00

Solution 1

this.CurveList = this.CurveList;

You're (probably) assigning a (generic) list "to itself"; which is not initialized; triggering constructors that require parameters.

You probably wanted to:

C#

this.CurveList = curves;

Posted 8-Aug-18 19:27pm

Gerry Schmitz

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Member 8571531 9-Aug-18 10:10am

Hi Gerry Schmitz,
Thanks for the feedback. At first glance your suggestion was obvious to me but when I tried that it didn't solve the issue, even after I initialized the CurveList as a new list.

OriginalGriff · Answer 2 · 2018-08-08T19:27:00

I'm not convinced that the code you show is where the error is, or if it is that you are looking at the same version of the files.

The error is saying that you are trying to create a Curve instance, and the class has only a formal constructor that requires at least one parameter, which is a SerializationInfo object - presumably you are trying to construct it using a parameterless constructor which doesn't exist.
But that code - despite doing nothing at all unless you have got very unpleasant with the CurveList property setter and started constructing objects in it - doesn't show any use of Curve instances. All it does is set a value to itself and ignore the formal parameter value completely.

I'd start by wondering exactly what you are doing: "adding a number of files as links from another project" is not the way I would go - I'd add the whole project as a reference and then use it's objects directly so there is less risk of incompatible changes occuring. What I suspect is that the "file links" ty=you think you have established are actually copies, and they aren't the same any more - so the line you think you are referencing to look at the error is not what (or where) you believe it is ...