"Value cannot be null. Parameter name: pUnk"

[jc-4]

Hello,

Please see screenshot below and help me get the items in the Component Wizard to show up again.

Thanks

Joe

[Fred_Kohlhepp]

I a bit confused.  Your screen shot looks like you've got an EXCEL sheet imbedded; I get the component wizard window if I'm inserting a new component.

If you have the this

 

in a sheet already try this:

• right-click on the component.  You should get a dialog with

                                 "add input variable"

                                 "add output variable"

                                 "properties"

   and a bunch of other options

This should let you define your inputs

[VladimirN]

But where is your Mathcad worksheet with this error?

[jc-4]

@

[jc-4]

Hi,

This is the mathcad program that shows the error.

Please advise what to do about it.

Joe

[Fred_Kohlhepp]

When I open this file the variables report the correct numbers and 176 rows.  I don't see the problem. . .

right-click gets me this:

[VladimirN]

There is no any error in Mathcad 15 M045 with your example worksheet. What version of Mathcad are you using?

[jc-4]

Hi guys,

The thing I'm missing is the stuff that I see in the Component Wizard.  If you look at my very first post, supposedly all those items "Matlab, Excel...etc" should show up in Component Wizard, but I don't see any of those.

You don't have problem because your component wizard shows Excel , but mine doesn't.

How to fix this?

Thanks

Joe

[RichardJ]

My guess is that if you insert a 3D graph you will also have a problem. Similarly if you insert a control (such as a list box).

[VladimirN]

What version of Mathcad are you using?

[RichardJ]

Repair your Mathcad installation.