Nullable type inference is not supported in this context

Value types and structures can be declared nullable.

Dim a? As Integer  
Dim b As Integer?  

However, you cannot use the nullable declaration in combination with type inference. The following examples cause this error.

' Not valid.  
' Dim c? = 10  
' Dim d? = a  

Error ID: BC36629

To correct this error

  • Use an As clause to declare the variable as nullable.

See Also

Nullable Value Types
Local Type Inference