Android :: Swapping In And Out Layout

I'm trying to dynamically swap in and out various layouts to one layout container. I've instantiated the container layout (mContainerLayout) by finding it using the id through the main Activity layout. This is successful. Next, I add the inner layout by calling:

layoutInflater = this.getLayoutInflater();
and then inflating the inner layout like this:
mInnerLayout = (LinearLayout) layoutInflater .inflate(R.layout.inner_layout, mContainerLayout);

This seems to work fine. I see the inner layout displayed in the Activity that holds the containing layout. Next, I want to swap in another inner layout, so I call: mContainerLayout.removeAllViews();and then I repeat the steps above. This is successful as well. The problem is when I try to swap in and out the instantiated layouts (the one that's returned from the inflate() call). When I call: mContainerLayout.removeAllViews();and then call: mContainerLayout.addView(mInnerLayout ); get a 'source not found' error. My question is: how can I swap the Layouts that have already been instantiated?