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POFragment already added. Support lib
 

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    <p>Since I upgraded my App to use <strong>support lib rev. 11</strong> and compiled against <strong>SDK 4.2</strong> I receive the following error</p> <pre><code>java.lang.IllegalStateException: Fragment already added: i{4079e598 #2 id=0x1020002 i} at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1159) at android.support.v4.app.BackStackRecord.popFromBackStack(BackStackRecord.java:729) at android.support.v4.app.FragmentManagerImpl.popBackStackState(FragmentManager.java:1493) at android.support.v4.app.FragmentManagerImpl.popBackStackImmediate(FragmentManager.java:477) at android.support.v4.app.FragmentActivity.onBackPressed(FragmentActivity.java:174) </code></pre> <p>I have read about similar problems on stackoverflow. Some of them suggest to avoid the replace method, which I am not using. The transaction that causes the crash on rollback looks like this:</p> <pre><code>ft.remove(oldFrag).add(newFrag).addToBackStack(null).commit() </code></pre> <p>Other comments say this may occur if you are using fragment transitions that can't finish quick enough before the user presses back again. Since I do use transition animations on the given fragments, this might be the cause. However, removing the transition is not a choice and since this <strong>exclusively</strong> occurs on phones running 2.3.x and the bug was introduced by upgrading to lib 11 and sdk 4.2 I hope google will fix it with the next release.</p> <p>Has anyone similar problems, information about whether this is planned to be fixed in 4.2.1 or support r12, or suggestions what I can do to circumvent the error?</p>
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    1. COGetting the same thing, but with `DialogFragment`.
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      1. USJason Robinson
    2. COI also get it with DialogFragment occasionally... I have filed a report [here](http://code.google.com/p/android/issues/detail?id=41552&thanks=41552&ts=1355757013). But no answer yet.
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    3. COgot same error for support library r12. Posted trace to android issue tracker too.
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      1. USSash0k
 

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