java.lang.IllegalStateException: FragmentManager is already executing transactions

[hexi]

java.lang.IllegalStateException: FragmentManager is already executing transactions
  at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:1626)
  at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:679)
  at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:166)
  at android.support.v4.view.ViewPager.populate(ViewPager.java:1240)
  at android.support.v4.view.ViewPager.populate(ViewPager.java:1088)
  at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1614)
  at android.view.View.measure(View.java:18026)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:963)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:629)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5702)
  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1692)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:760)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:629)
  at android.view.View.measure(View.java:18026)
  at android.widget.ScrollView.measureChildWithMargins(ScrollView.java:1283)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:465)
  at android.widget.ScrollView.onMeasure(ScrollView.java:348)
  at android.view.View.measure(View.java:18026)
  at in.srain.cube.views.ptr.PtrFrameLayout.measureContentView(PtrFrameLayout.java:224)
  at in.srain.cube.views.ptr.PtrFrameLayout.onMeasure(PtrFrameLayout.java:202)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5702)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:465)
  at android.view.View.measure(View.java:18026)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:963)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:629)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5702)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:465)
  at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:135)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5702)
  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1692)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:760)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:629)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5702)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:465)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5702)
  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1692)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:760)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:629)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5702)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:465)
  at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2780)
  at android.view.View.measure(View.java:18026)
  at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2435)
  at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1423)
  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1658)
  at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1301)
  at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6687)
  at android.view.Choreographer$CallbackRecord.run(Choreographer.java:800)
  at android.view.Choreographer.doCallbacks(Choreographer.java:603)
  at android.view.Choreographer.doFrame(Choreographer.java:572)
  at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:786)
  at android.os.Handler.handleCallback(Handler.java:815)
  at android.os.Handler.dispatchMessage(Handler.java:104)
  at android.os.Looper.loop(Looper.java:194)
  at android.app.ActivityThread.main(ActivityThread.java:5860)
  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:1019)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:814)