How can I fix this error in stack_appodeal_flutter
E/Appodeal( 9569): Network [Error]: Your 'A4g' SDK version (21.0.0) doesn't match recommended. Please use 'A4g' SDK version 20.6.0 instead to be sure that everything will work correctly.
E/Appodeal( 9569): Network [Error]: Your 'Admob' SDK version (21.0.0) doesn't match recommended. Please use 'Admob' SDK version 20.6.0 instead to be sure that everything will work correctly.
E/Appodeal( 9569): Network [Error]: Your 'Notsy' SDK version (21.0.0) doesn't match recommended. Please use 'Notsy' SDK version 20.6.0 instead to be sure that everything will work correctly.
They have updated to 3.0.0 try to add package correctly check their instruction :