title: Yarn serve error command failed with exit code 1
body: <p>I am trying to run the command "yarn serve" on console for my angular project(cd/project)
  However I am getting this error :</p>
  
  <p>yarn run v1.17.3</p>
  
  <p>$ concurrently "ng serve" "server/node_modules/.bin/ts-node-dev server/server.ts"</p>
  
  <p>[0] The serve command requires to be run in an Angular project, but a project definition could not be found.</p>
  
  <p>[0] ng serve exited with code 1</p>
  
  <p>[1] Using ts-node version 8.3.0, typescript version 3.6.2</p>
  
  <p>[1] hello</p>
  
  <p>[1] server/node_modules/.bin/ts-node-dev server/server.ts exited with code 0</p>
  
  <p>error Command failed with exit code 1.</p>
  
  <p>info Visit <a href="https://yarnpkg.com/en/docs/cli/run" rel="nofollow noreferrer">https://yarnpkg.com/en/docs/cli/run</a> for documentation about this command.</p>