what does mwan, user-type not defined?

Dear all,
when i am trying to one vb module written for solidworks it shows one error message as follows

"user-type not defined"

what does mean, user-type not defined? and how to solve this?

Thankyou
Regards
Rajamani

It appears that the code is referencing a data item that is defined as a non-standard data type (user data type). Check your data definitions.

It may be helpful if you post the code, or at least the line you get the error on.

Basically somewhere in your program you are using a custom type and not telling VB what it is or how to use it. If you are using a module someone else wrote you are probably missing part of it.

here the coding ii

Option Explicit

Public Enum swBodyType_e
swSolidBody = 0
swSheetBody = 1
swWireBody = 2
swMinimumBody = 3
swGeneralBody = 4
swEmptyBody = 5
End Enum

Public Enum swUserPreferenceStringValue_e
swDefaultTemplatePart = 8
End Enum

Public Enum swCreateFeatureBodyOpts_e
swCreateFeatureBodyCheck = &H1
swCreateFeatureBodySimplify = &H2
End Enum

Public Enum swDwgPaperSizes_e
swDwgPaperAsize = 0
swDwgPaperAsizeVertical = 1
swDwgPaperBsize = 2
swDwgPaperCsize = 3
swDwgPaperDsize = 4
swDwgPaperEsize = 5
swDwgPaperA4size = 6
swDwgPaperA4sizeVertical = 7
swDwgPaperA3size = 8
swDwgPaperA2size = 9
swDwgPaperA1size = 10
swDwgPaperA0size = 11
swDwgPapersUserDefined = 12
End Enum

Sub main()
Dim swApp As SldWorks.SldWorks
Dim swModel As SldWorks.ModelDoc2
Dim swPart As SldWorks.PartDoc
Dim swBody As SldWorks.Body2
Dim swFace As SldWorks.face2
Dim swLoop As SldWorks.Loop2
Dim vEdgeArr As Variant
Dim swCurve() As SldWorks.Curve
Dim vCurveArr As Variant
Dim swEdge As SldWorks.Edge
Dim swTempBody As SldWorks.Body2
Dim swSurf As SldWorks.surface
Dim swSurfCopy As SldWorks.surface
Dim sPartTemplateName As String
Dim swNewModel As SldWorks.ModelDoc2
Dim swNewPart As SldWorks.PartDoc
Dim swFeat() As SldWorks.feature
Dim swKnitFeat As SldWorks.feature
Dim swThickFeat As SldWorks.feature
Dim swNewFeatMgr As SldWorks.FeatureManager
Dim i As Long
Dim bRet As Boolean

Set swApp = Application.SldWorks
Set swModel = swApp.ActiveDoc
Set swPart = swModel
Set swBody = swPart.Body

' create new part
sPartTemplateName = swApp.GetUserPreferenceStringValue(swDefaultTemplatePart)
Set swNewModel = swApp.NewDocument(sPartTemplateName, swDwgPaperAsize, 0#, 0#)
Set swNewFeatMgr = swNewModel.FeatureManager
Set swNewPart = swNewModel

ReDim swFeat(0)

Set swFace = swBody.GetFirstFace
Do While Not swFace Is Nothing
Set swLoop = swFace.GetFirstLoop
Do While Not swLoop Is Nothing
If swLoop.IsOuter Then
vEdgeArr = swLoop.GetEdges
If UBound(vEdgeArr) >= 0 Then
ReDim swCurve(UBound(vEdgeArr))
For i = 0 To UBound(vEdgeArr)
Set swEdge = vEdgeArr(i)
Set swCurve(i) = swEdge.GetCurve
Next i
vCurveArr = swCurve

Set swSurf = swFace.GetSurface
Set swSurfCopy = swSurf.Copy
Set swTempBody = swSurfCopy.CreateTrimmedSheet(vCurveArr)

' typically returns NULL if the loop is
' perpendicular to the surface as in the
' end loops of a cylinder
If Not swTempBody Is Nothing Then
' sheet body will only have one face
Debug.Assert 1 = swTempBody.GetFaceCount
Debug.Assert swSheetBody = swTempBody.GetType

Set swFeat(UBound(swFeat)) = swNewPart.CreateFeatureFromBody3(swTempBody, False, swCreateFeatureBodyCheck)
Debug.Assert Not swFeat(UBound(swFeat)) Is Nothing

ReDim Preserve swFeat(UBound(swFeat) + 1)
End If
End If
End If

Set swLoop = swLoop.GetNext
Loop

Set swFace = swFace.GetNextFace
Loop

' remove last, NULL feature
ReDim Preserve swFeat(UBound(swFeat) - 1)

swNewModel.ClearSelection2 True
For i = 0 To UBound(swFeat)
bRet = swFeat(i).Select2(True, 1): Debug.Assert bRet
Next i

swNewModel.InsertSewRefSurface

' make sure we've successfully sewn surfaces together
Set swKnitFeat = swNewModel.FeatureByPositionReverse(0)
Debug.Assert Not swKnitFeat Is Nothing
Debug.Assert "SewRefSurface" = swKnitFeat.GetTypeName

bRet = swKnitFeat.Select2(False, 1): Debug.Assert bRet

Set swThickFeat = swNewFeatMgr.FeatureBossThicken(0.01, 0, 0, True, True, True, True)
Debug.Assert Not swThickFeat Is Nothing
End Sub

On what line does the error occur? That will be the necessary clue.

Vb is probably thinking that you are missing a UDT when you are really missing a reference. Have you setup any references for your project?

Judging from the code, that seems very likely, but the actual line that the error occurs on should pinpoint which reference was missing.

Hereby I attaching the screen shot of error message for your review and I did not set any references.
If I have to set refernces means, pl. tell me how to do it?

What is SldWorks? That is your problem. That looks like it might be a third party component, but I don't recognize it. You will need to go to Project|References, and select the proper reference for that, but since I don't know what it is, I don't know what the proper reference is.

Thank you Shaggy Hiker and all,
Now it is working, but some runtime errors are there. If I face trouble, I will get back to you.

Once again Thankyou to all