I notice you say that you are trying to place a ShinobiControls ChartFragment into a Fragment. As Pat has mentioned, our ChartFragment/SupportChartFragment is retained across Activity re-creation and the Android framework does not allow retained Fragments within other Fragments.
The solution is to use a ChartView object instead. As Pat mentioned, you would need to place a ChartView inside a Fragment. You'll need to forward the life-cycle callbacks, such as onPause and onResume to the ChartView object.
For a basic example of how to use a ChartView, look for the project named 'customdataadapterchartview' in the 'samples' directory of the download bundle.
I hope this helps,