Edit and Continue (Visual Basic): Conditional Compilation Edits
This topic applies to:
Pro, Premium, and Ultimate
Most changes to conditional compilation directives are not allowed while in Edit and Continue mode. Specifically, Edit and Continue does not support the following changes:
Adding or removing conditional compilation directives.
Adding, removing, or changing the evaluation expression of a conditional compilation statement.
If you want to make one of these changes, you must stop debugging and recompile your project.