title: Waiting for build to finish in android studio 3.5
body: <p>I have been working on a project since a long time in android studio and it does not show any problems but since i have updated my windows the app preview is constantly showing "waiting for build to finsh".
  I dont understand why, i have tried some approaches i have searched in google and stackoverflow but nothing helped me so far!
  I tried 
  -sync project with gradle files
  -invalidate cache and restart
  -rebuilding several times</p>
  
  <p>Any reply will be appreciated.
  Thankyou! </p>