Fix MaterialApp onGenerateRoute does not always return something
Fix MaterialApp onGenerateRoute does not always return something

IDE complains about this

google/taqo-paco,google/taqo-paco,google/taqo-paco,google/taqo-paco,google/taqo-paco,google/taqo-paco,google/taqo-paco,google/taqo-paco,google/taqo-paco