title: What causes "RuntimeException: Binary XML file line #20: You must supply a layout_height attribute." (ActionBarScherlock is suspected)?
body: <p>I have app with ActionBarScherlock and I use ACRA. I receive crash reports from some users with following error:</p>
  
  <pre><code>"java.lang.RuntimeException: Binary XML file line #20: You must supply a layout_height attribute.
      at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:491)
      at android.view.ViewGroup$LayoutParams.setBaseAttributes(ViewGroup.java:3602)
      at android.view.ViewGroup$LayoutParams.&lt;init&gt;(ViewGroup.java:3554)
      at android.widget.AbsListView$LayoutParams.&lt;init&gt;(AbsListView.java:4322)
      at android.widget.AbsListView.generateLayoutParams(AbsListView.java:4116)
      at android.widget.AbsListView.generateLayoutParams(AbsListView.java:74)
      at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
      at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
      at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:332)
      at android.widget.ArrayAdapter.getView(ArrayAdapter.java:323)
      at android.webkit.WebTextView$AutoCompleteAdapter.getView(WebTextView.java:650)
      at android.widget.AbsListView.obtainView(AbsListView.java:1430)
      at android.widget.AutoCompleteTextView$DropDownListView.obtainView(AutoCompleteTextView.java:1548)
      at android.widget.ListView.measureHeightOfChildren(ListView.java:1216)
      at android.widget.AutoCompleteTextView.buildDropDown(AutoCompleteTextView.java:1376)
      at android.widget.AutoCompleteTextView.showDropDown(AutoCompleteTextView.java:1140)
      at android.widget.AutoCompleteTextView.updateDropDownForFilter(AutoCompleteTextView.java:1022)
      at android.widget.AutoCompleteTextView.onFilterComplete(AutoCompleteTextView.java:1005)
      at android.widget.Filter$ResultsHandler.handleMessage(Filter.java:285)
      at android.os.Handler.dispatchMessage(Handler.java:99)
      at android.os.Looper.loop(Looper.java:130)
      at android.app.ActivityThread.main(ActivityThread.java:3717)
      at java.lang.reflect.Method.invokeNative(Native Method)
      at java.lang.reflect.Method.invoke(Method.java:507)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
      at dalvik.system.NativeStart.main(Native Method)"
  </code></pre>
  
  <p>Of course I've tried to google it and found that it is most likely caused by ActionBarScherlock (and I noticed that every user who encountered with this error uses android 2.3.*) but haven't found a solution. 
  It's a bit disconcerting that I can't reproduce this error on my own 2.3.* device...</p>
  
  <p>So, what causes this error?</p>