title: Localization Windows Store App MakePRI warning
body: <p>I have added localized strings for my app as Resources.resw files under corresponding folders (en-US, nb-NO) and get the following warning when compiling:</p>
  
  <p><strong>MakePRI : warning 0xdef00520: Invalid Qualifier: EN-US</strong></p>
  
  <p><strong>MakePRI : warning 0xdef00520: Invalid Qualifier: NB-NO</strong></p>
  
  <p>I suspect invalid characters as keys but I am unable to track down the offenders.</p>
  
  <p>Here is the build output:</p>
  
  <pre><code>1&gt;Task "GenerateProjectPriFile"
  1&gt;  C:\Program Files (x86)\Windows Kits\8.0\bin\x86\MakePri.exe New -ProjectRoot "C:\Users\Eivind\documents\visual studio 2012\Projects\FructoseStore\FructoseStore\\" -ConfigXml obj\Debug\priconfig.xml -OutputFile "C:\Users\Eivind\documents\visual studio 2012\Projects\FructoseStore\FructoseStore\bin\Debug\resources.pri" -IndexName 1e111781-63c0-4629-81a6-442da5904cb6 -Verbose -Overwrite  
  1&gt;  Option Verbose specified
  1&gt;  Option Overwrite specified
  1&gt;  Index Pass Completed: obj\Debug\layout.resfiles
  1&gt;  
  1&gt;  Index Pass Completed: obj\Debug\resources.resfiles
  1&gt;  Language Qualifiers: EN-US, NB-NO
  1&gt;  
  1&gt;  Index Pass Completed: obj\Debug\pri.resfiles
  1&gt;  Language Qualifiers: EN-US, NB-NO
  1&gt;  
  1&gt;  Finished building
  1&gt;  Version: 1.0
  1&gt;  Resource Map Name: 1e111781-63c0-4629-81a6-442da5904cb6
  1&gt;  Named Resources: 79
  1&gt;  Resource Candidates: 140
  1&gt;  Output File at C:\Users\Eivind\documents\visual studio 2012\Projects\FructoseStore\FructoseStore\bin\Debug\resources.pri
  1&gt;  Successfully Completed
  1&gt;MakePRI : warning 0xdef00520: Invalid Qualifier: EN-US
  1&gt;MakePRI : warning 0xdef00520: Invalid Qualifier: NB-NO
  1&gt;Done executing task "GenerateProjectPriFile".
  </code></pre>