title: Accidentally deleted pub-cache in Flutter sdk
body: <p>I accidentally deleted the pub-cache in my flutter sdk and now whenever I try to run my flutter app on the web I receive this error: </p>
  
  <p>Finished with error: Invalid argument(s): A directory corresponding to fileSystemPath "/Users/xxxxx/flutter/.pub-cache/hosted/pub.dartlang.org/devtools-0.1.15/build" could not be found</p>
  
  <p>How can I resolve this issue? </p>
  
  <p>I already tried to restore the pub-cache but it doesn't work. </p>
  
  <p>How can I solve this? </p>