Launch 2 parallel ionic serve failed

[aloumeau-hager]

Short description of the problem:

Since ionic-cli 2.1.18 i can't run 2 ionic serve at the same time

What behavior are you expecting?

run 2 ionic serve at the same time

i think ionic-cli just not test anymore if the port is already use.
But something more strange is the difference between "--livereload-port" "35730"" and "listen EADDRINUSE 0.0.0.0:53703" i don't know if it's normal

> ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8101" "--livereload-port" "35730"

[10:14:36]  ionic-app-scripts 0.0.47
[10:14:37]  watch started ...
[10:14:37]  build dev started ...
events.js:160
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE 0.0.0.0:53703

hope it can help you to improve ionic-cli

[matomesc]

Getting the same error when I'm running ionic serve followed by ionic run android --device. I tried using different ports via -r <port> and -p <port> but it fails with the same error message above.

[gianpaj]

For others looking for this, the workaround can be found here:

#1678 -> #1678 (comment)

[imhoffd]

This was just fixed in ionic-team/ionic-app-scripts@271a6e1

Please upgrade to the latest app-scripts.