java.lang.NullPointerException

[e-yes]

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at android.os.Process$1.run(Process.java:424)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at android.os.Process$1.run(Process.java:417)
Caused by: java.lang.RuntimeException: Unable to create service com.woodenshark.prismatik.PrismService: java.lang.NullPointerException
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2622)
at android.app.ActivityThread.access$1700(ActivityThread.java:138)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1492)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:156)
at android.app.ActivityThread.main(ActivityThread.java:5078)
... 3 more
Caused by: java.lang.NullPointerException
at android.hardware.usb.UsbManager.getDeviceList(UsbManager.java:243)
at com.woodenshark.prismatik.devices.DeviceManager.openDevices(DeviceManager.java:123)
at com.woodenshark.prismatik.PrismService.onCreate(PrismService.java:50)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2612)
... 8 more