Error Examples

Compile Error - ByRef argument type mismatch

An argument passed ByRef must have the precise data type.
If the data types are different you will see a "ByRef argument type mismatch" error message.
In this example we are passing an Integer variable when a Long is expected.

Sub CallByRef() 
   Dim number As Integer
   number = 50
   Call MySub(number)
End Sub
Sub MySub(ByRef amount As Long)
End Sub

Run-Time Error - Invalid procedure

This works for positive values of X but fails for negative values.

Sub NegativeX() 
Dim x As Double
x = -10
If (x < 0) And (VBA.Sqr(x) < 10) Then
'do something
End If
End Sub

You should use logical assignments as opposed to IF statements will also help performance (ie y = (x = 5)).

Compile Error - Invalid outside procedure

Compile Error - Invalid qualifier

Compile Error - Only user defined types defined

Compile Error - Procedure too long

Run Time Error - 429 ActiveX component can't create object

If you are running 64-bit Office and there is a reference to a 32-bit dll.

Automation Error - The object invoked has disconnected from its clients

Automation Error - The callee (server [not server application]) is not available and disappeared; all connections are invalid. The call may have been executed

Cannot run Visual Basic macro because of a syntax error

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