title: Cannot open file, path = './pubspec.lock' (OS Error: Permission denied, errno = 13)
body: <p>After upgrading Flutter to the latest version I am unable to run any flutter command. It is showing the following error:</p>
  <pre><code>Building flutter tool...                                          
  Cannot open file, path = './pubspec.lock' (OS Error: Permission denied, errno = 13)
  </code></pre>