Attempt to invoke interface method on a null object reference finishComposingText()

I am running robotium on a nexus 6 and getting the following error

 java.lang.NullPointerException: Attempt to invoke interface method      'boolean android.view.inputmethod.InputConnection.finishComposingText()' on      a null object reference
 at android.view.inputmethod.InputConnectionWrapper.finishComposingText(InputConnectionWrapper.java:78)
 at android.view.inputmethod.InputMethodManager.reportFinishInputConnection(InputMethodManager.java:859)
 at android.view.ViewRootImpl$ViewRootHandler.handleMessage(ViewRootImpl.java:3253)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:135)
 at android.app.ActivityThread.main(ActivityThread.java:5221)
 at java.lang.reflect.Method.invoke(Native Method)
 at java.lang.reflect.Method.invoke(Method.java:372)
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

The line in question is:

     solo.enterText((android.widget.EditText) solo.getView("amount"), "11.11");  

I have verified that the field exists, not sure what else could be causing the problem. Any help would be appreciated