Error with std_msgs package, :package std_msgs does not exist

[KenwoodFox]

I get this error, im trying to follow a basic tutorial but i cant seem to import std_msgs? Heres my code in full https://github.com/FRC-1721/pre2020season/tree/rosjava
I poked around on the ROS discord nobody really had this problem, i dont know where to start in debugging this.

    final Publisher<std_msgs.String> publisher =
                            ^
D:\GitHub\pre2020season\src\main\java\frc\robot\ROSAdvanced.java:51: error: package std_msgs does not exist
        connectedNode.newPublisher(topic_name, std_msgs.String._TYPE);
                                                       ^
D:\GitHub\pre2020season\src\main\java\frc\robot\ROSAdvanced.java:64: error: package std_msgs does not exist
        std_msgs.String str = publisher.newMessage();```
I think this may be similar to #46?