Error(s):

(19:9) A namespace cannot directly contain members such as fields or methods
(19:13) Identifier expected
(19:14) Expected class, delegate, enum, interface, or struct
(19:27) Expected class, delegate, enum, interface, or struct
(19:31) Identifier expected
(20:25) Expected class, delegate, enum, interface, or struct
(23:27) Expected class, delegate, enum, interface, or struct
(25:13) A namespace cannot directly contain members such as fields or methods
(25:43) Expected class, delegate, enum, interface, or struct