Error: listen EADDRINUSE :::8081

Error in react-native run-android

events.js:183
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE :::8081
    at Object._errnoException (util.js:992:11)
    at _exceptionWithHostPort (util.js:1014:20)
    at Server.setupListenHandle [as _listen2] (net.js:1355:14)
    at listenInCluster (net.js:1396:12)
    at Server.listen (net.js:1480:7)
    at /home/pato/Proyectos/lynx-economic-control/node_modules/metro/src/index.js:205:18
    at new Promise (<anonymous>)
    at Object.<anonymous> (/home/pato/Proyectos/lynx-economic-control/node_modules/metro/src/index.js:204:12)
    at Generator.next (<anonymous>)
    at step (/home/pato/Proyectos/lynx-economic-control/node_modules/metro/src/index.js:58:30)