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There is a newer version: 1.12.1

Why is this an issue?

  When an assertion without a message fails, it raises a generic EAssertionFailed
  exception, which is of little use when debugging. Providing a message ensures that the assertion
  is more immediately identifiable and helpful when it fails.

How to fix it
Add a descriptive message string as the second parameter to the System.Assert call:
procedure Foo(Bar: TObject);
begin
  Assert(Assigned(Bar));
end;

procedure Foo(Bar: TObject);
begin
  Assert(Assigned(Bar), 'Bar must be initialized');
end;

Resources

  
    
      RAD Studio API documentation: System.Assert