Help finding image in Java

I am having an issue trying to find an image on the screen, I tried doing it in two different ways and it doesn't seem to work for me.
I am trying to do this with Appium running on IOS simulator which shows up on the screen, so I don't see this being a problem of a screenshot being taken.

I am running MAC OSX El Capitan
I have imported the Sikuli X java API in my project

Do I need to also import the MAC Sikuli Library jar?

This is what I have tried so far:

1.

Screen s = new Screen();
    Pattern test = new Pattern("/Users/ealiaj/Desktop/Automation/workspace/WheelsUp - IOS/screenshot.jpg");
    try {
   s.find(test);
  } catch (FindFailed e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

I get an error about a mouse pointer:

[error] RobotDesktop: checkMousePosition: should be L(720,450)@S(0)[0,0 1440x900]
but after move is L(558,366)@S(0)[0,0 1440x900]
Possible cause in case you did not touch the mouse while script was running:
 Mouse actions are blocked generally or by the frontmost application.

2.

Screen s = new Screen();
    try {
   s.find("screenshot.jpg");
  } catch (FindFailed e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

I keep getting cannot find errors.

Thanks.