title: How can I uninstall protobuf 3.0.0?
body: <p>I used the instructions from here to install Protocol Buffer: <a href="https://github.com/google/protobuf/blob/master/src/README.md" rel="noreferrer">https://github.com/google/protobuf/blob/master/src/README.md</a>
  and ended up with version 3 (<code>"protoc --version" "libprotoc 3.0.0"</code>)</p>
  
  <p>However, I need a protoc version 2. </p>
  
  <p>I tried to uninstall it with <code>apt-get remove protobuf-compiler</code></p>
  
  <p>But this is what I get and version 3 is still installed:</p>
  
  <pre><code>Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Package 'protobuf-compiler' is not installed, so not removed
  0 to upgrade, 0 to newly install, 0 to remove and 396 not to upgrade.
  </code></pre>
  
  <p>I am using Ubuntu 14.04 and "which protoc" command points at "/usr/bin/protoc"</p>
  
  <p>I am looking to an alternative solution than given in <a href="https://stackoverflow.com/questions/30866772/protocol-buffer-version-change">Protocol Buffer: Version Change</a></p>
  
  <p>I am not sure if I am using the correct command for uninstalling. Any suggestions?</p>