forward-reference-to-user-defined-type.md

title	keywords	f1_keywords	ms.assetid	ms.date	ms.localizationpriority
Forward reference to user-defined type	vblr6.chm1040069	vblr6.chm1040069	316416e3-68d3-f5ae-88bf-6f6fa01e54a9	06/08/2017	medium

Forward reference to user-defined type

A user-defined type must be defined before it can be referenced. This error has the following causes and solutions:

• You declared a variable with a user-defined type before the definition of the user-defined type appears. In the following example, the variable OtherVar is declared before its type (OtherType) is known:

    Type MyType 
    OtherVar As OtherType 
    End Type 
    
    Type OtherType 
    WholeVar As Integer 
    RealVar As Double 
    End Type 

  Reposition the type definitions so that the forward reference doesn't occur.

• You nested a user-defined type within itself.

    Type MyType 
    MyVar As Integer 
    OtherVar As MyType 
    End Type 

  Remove the self-referencing nested type. This may occur indirectly if you nest a type within another type in which the first is already declared. Check the definition of each nested type to eliminate duplication.

For additional information, select the item in question and press F1 (in Windows) or HELP (on the Macintosh).

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