Variable '<variablename>' hides a variable in an enclosing block

A variable enclosed in a block has the same name as another local variable.

Error ID: BC30616

Rename the variable in the enclosed block so that it is not the same as any other local variables. For example:
```
Dim a, b, x As Integer
If a = b Then
   Dim y As Integer = 20 ' Uniquely named block variable.
End If
```
A common cause for this error is the use of Catch e As Exception inside an event handler. If this is the case, name the Catch block variable ex rather than e.
Another common source of this error is an attempt to access a local variable declared within a Try block in a separate Catch block. To correct this, declare the variable outside the Try...Catch...Finally structure.

See Also