title: invalid file path while trying to rebuild with apktool and aapt2
body: <p>I am facing an error while try to repack an apk with apkool. below is the error trace.</p>
  
  <pre><code>
  W: error: invalid file path 'C:\Users\ccre\res\drawable2\abc_ic_search_api_material.xml'.
  W: error: invalid file path 'C:\Users\ccre\res\drawable2\abc_ic_voice_search_api_material.xml'.
  W: error: invalid file path 'C:\Users\ccre\res\drawable2\abc_item_background_holo_light.xml'.
  W: error: invalid file path 'C:\Users\ccre\res\drawable2\abc_list_divider_material.xml'.
  W: error: invalid file path 'C:\Users\ccre\res\drawable2\abc_list_selector_background_transition_holo_dark.xml'.
  brut.androlib.AndrolibException: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\HOMA~1\AppData\Local\Temp\brut_util_Jar_3949150857603741809118973406025728052.tmp, compile, --dir, C:\Users\ccre\res, --legacy, -o, C:\Users\ccre\build\resources.zip]
  
  </code></pre>
  
  <p>Does anyone tell me what is wrong here and why this error <strong>[error: invalid file path]</strong> is shown while the file is there?!</p>