title: Unable to locate package mingw32
body: <p>Excuse me, I am compiling Android open source project(AOSP) on the Ubuntu 15.04 accroding to this web page(<a href="http://blog.logan.tw/2013/09/build-android-aosp.html" rel="nofollow">http://blog.logan.tw/2013/09/build-android-aosp.html</a>), I need to install some tools by this command line:</p>
  
  <pre><code>sudo apt-get install git gnupg flex bison gperf build-essential \
      zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
      libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
      libgl1-mesa-dev g++-multilib gcc-multilib mingw32 tofrodos \
      python-markdown libxml2-utils xsltproc zlib1g-dev:i386
  </code></pre>
  
  <p>After that, </p>
  
  <pre><code>Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  E: Unable to locate package mingw32
  </code></pre>
  
  <p>I tried to modify the file /etc/apt/sources.list 
  original: </p>
  
  <blockquote>
    <p>deb http ://tw.archive.ubuntu.com/ubuntu/ vivid main restricted</p>
  </blockquote>
  
  <p>result: </p>
  
  <blockquote>
    <p>deb http ://tw.archive.ubuntu.com/ubuntu/ vivid main universe</p>
  </blockquote>
  
  <p>It's not work for me, I don't know how to fix this problem:
  <strong>E: Unable to locate package mingw32</strong>
  Help me please! Thanks!</p>