Erro ao rodar o laravel-echo-server start

L A R A V E L  E C H O  S E R V E R

version 1.6.2

⚠ Starting server in DEV mode...

TypeError: Cannot read property '1' of null

    at Server.getPort (C:\Users\klery\AppData\Roaming\npm\node_modules\laravel-echo-server\dist\server.js:27:32)

    at Server.httpServer (C:\Users\klery\AppData\Roaming\npm\node_modules\laravel-echo-server\dist\server.js:72:32)

    at C:\Users\klery\AppData\Roaming\npm\node_modules\laravel-echo-server\dist\server.js:38:31

    at new Promise (<anonymous>)

    at Server.serverProtocol (C:\Users\klery\AppData\Roaming\npm\node_modules\laravel-echo-server\dist\server.js:31:16)

    at C:\Users\klery\AppData\Roaming\npm\node_modules\laravel-echo-server\dist\server.js:17:19

    at new Promise (<anonymous>)

    at Server.init (C:\Users\klery\AppData\Roaming\npm\node_modules\laravel-echo-server\dist\server.js:16:16)

    at C:\Users\klery\AppData\Roaming\npm\node_modules\laravel-echo-server\dist\echo-server.js:51:26

    at new Promise (<anonymous>)