Error: kill ESRCH when starting

I'll have it running for a while, I'll close it out. Run npm start and I'll get the following error:

````
contract-summary@0.1.0 start /Users/JayStarr/web/contract-summary
> webpack-dashboard -m -- webpack-dev-server --config config/webpack.config.js --open --env.local --hot
internal/process.js:172
throw errnoException(err, 'kill');
^
Error: kill ESRCH
at exports._errnoException (util.js:1026:11)
at process.kill (internal/process.js:172:13)
at process.on (/Users/JayStarr/web/contract-summary/node_modules/webpack-dashboard/bin/webpack-dashboard.js:89:15)
at emitOne (events.js:101:20)
at process.emit (events.js:188:7)
at process.exit (internal/process.js:146:15)
at Screen.Dashboard.screen.key (/Users/JayStarr/web/contract-summary/node_modules/webpack-dashboard/dashboard/index.js:84:15)
at Screen.EventEmitter._emit (/Users/JayStarr/web/contract-summary/node_modules/blessed/lib/events.js:94:20)
at Screen.EventEmitter.emit (/Users/JayStarr/web/contract-summary/node_modules/blessed/lib/events.js:114:17)
at Program. (/Users/JayStarr/web/contract-summary/node_modules/blessed/lib/widgets/screen.js:593:12)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! contract-summary@0.1.0 start: 'webpack-dashboard -m -- webpack-dev-server --config config/webpack.config.js --open --env.local --hot'
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the contract-summary@0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/JayStarr/.npm/_logs/2018-07-13T15_22_42_717Z-debug.log
````

I'll go and kill all node processes but that won't work. I'm trying to run on port 8080 so I ran the following command to see if anything else is trying to listen on that port:

`sudo lsof -i -n -P | grep TCP`

And this is the output:

````
~/web/contract-summary › sudo lsof -i -n -P | grep TCP
vpnagentd 72 root 5u IPv4 0xfd5521e048461377 0t0 TCP 127.0.0.1:29754 (LISTEN)
apsd 102 root 7u IPv4 0xfd5521e04f5a38f7 0t0 TCP 192.168.1.6:49242->17.249.12.153:5223 (ESTABLISHED)
apsd 102 root 9u IPv4 0xfd5521e04f5a38f7 0t0 TCP 192.168.1.6:49242->17.249.12.153:5223 (ESTABLISHED)
httpd 104 root 4u IPv6 0xfd5521e0490156cf 0t0 TCP *:80 (LISTEN)
httpd 104 root 5u IPv4 0xfd5521e0490238f7 0t0 TCP *:* (CLOSED)
nfsd 254 root 7u IPv4 0xfd5521e04677ef97 0t0 TCP *:1023 (LISTEN)
nfsd 254 root 8u IPv6 0xfd5521e046782b4f 0t0 TCP *:1022 (LISTEN)
nfsd 254 root 9u IPv4 0xfd5521e04677e637 0t0 TCP *:2049 (LISTEN)
nfsd 254 root 10u IPv6 0xfd5521e04678310f 0t0 TCP *:2049 (LISTEN)
cupsd 258 root 7u IPv6 0xfd5521e0467836cf 0t0 TCP *:631 (LISTEN)
cupsd 258 root 8u IPv4 0xfd5521e0484638f7 0t0 TCP *:631 (LISTEN)
rpc.statd 260 root 7u IPv4 0xfd5521e049327377 0t0 TCP *:1021 (LISTEN)
rpc.statd 260 root 8u IPv6 0xfd5521e049014b4f 0t0 TCP *:1019 (LISTEN)
rpc.lockd 263 root 6u IPv4 0xfd5521e0494cc377 0t0 TCP *:1017 (LISTEN)
rpc.lockd 263 root 7u IPv6 0xfd5521e04901458f 0t0 TCP *:1012 (LISTEN)
rpcbind 264 daemon 4u IPv4 0xfd5521e04677dcd7 0t0 TCP *:111 (LISTEN)
rpcbind 264 daemon 6u IPv6 0xfd5521e04901510f 0t0 TCP *:111 (LISTEN)
httpd 317 _www 4u IPv6 0xfd5521e0490156cf 0t0 TCP *:80 (LISTEN)
httpd 317 _www 5u IPv4 0xfd5521e0490238f7 0t0 TCP *:* (CLOSED)
rpc.rquot 328 root 6u IPv4 0xfd5521e0494f3377 0t0 TCP *:999 (LISTEN)
rpc.rquot 328 root 7u IPv6 0xfd5521e0494f76cf 0t0 TCP *:996 (LISTEN)
Google 356 JayStarr 58u IPv4 0xfd5521e0607a88f7 0t0 TCP 192.168.1.6:51614->104.192.143.1:443 (ESTABLISHED)
Google 356 JayStarr 119u IPv4 0xfd5521e05fc8bf97 0t0 TCP 192.168.1.6:54342->104.192.138.71:443 (ESTABLISHED)
Google 356 JayStarr 148u IPv4 0xfd5521e04e01cf97 0t0 TCP 192.168.1.6:49204->108.177.120.188:5228 (ESTABLISHED)
Google 356 JayStarr 153u IPv4 0xfd5521e0494f4637 0t0 TCP 192.168.1.6:51828->192.168.1.9:42968 (ESTABLISHED)
Google 356 JayStarr 155u IPv4 0xfd5521e05e52acd7 0t0 TCP 192.168.1.6:60843->13.56.167.230:443 (ESTABLISHED)
Google 356 JayStarr 181u IPv4 0xfd5521e0502db637 0t0 TCP 192.168.1.6:51849->192.168.1.9:8009 (ESTABLISHED)
Google 356 JayStarr 234u IPv4 0xfd5521e0494daf97 0t0 TCP 192.168.1.6:58238->216.58.192.142:80 (CLOSED)
Google 356 JayStarr 247u IPv4 0xfd5521e05f0818f7 0t0 TCP 192.168.1.6:53619->136.147.110.205:443 (ESTABLISHED)
Google 356 JayStarr 264u IPv4 0xfd5521e054547cd7 0t0 TCP 192.168.1.6:58243->74.125.5.10:80 (CLOSED)
Google 356 JayStarr 268u IPv4 0xfd5521e049328f97 0t0 TCP 192.168.1.6:58248->173.194.152.106:80 (CLOSED)
Google 356 JayStarr 270u IPv4 0xfd5521e054521637 0t0 TCP 192.168.1.6:53018->151.101.1.69:443 (ESTABLISHED)
Google 356 JayStarr 333u IPv4 0xfd5521e05daa2cd7 0t0 TCP 192.168.1.6:53025->104.16.109.18:443 (ESTABLISHED)
Google 356 JayStarr 342u IPv4 0xfd5521e05d922f97 0t0 TCP 192.168.1.6:51846->162.247.242.21:443 (ESTABLISHED)
Google 356 JayStarr 347u IPv4 0xfd5521e04d629f97 0t0 TCP 192.168.1.6:64073->54.86.114.0:443 (ESTABLISHED)
Google 356 JayStarr 348u IPv4 0xfd5521e043c15cd7 0t0 TCP 192.168.1.6:64074->52.72.206.54:443 (ESTABLISHED)
Google 356 JayStarr 361u IPv4 0xfd5521e060546f97 0t0 TCP 192.168.1.6:52004->151.101.26.110:443 (ESTABLISHED)
Google 356 JayStarr 365u IPv4 0xfd5521e0494f58f7 0t0 TCP 192.168.1.6:62113->172.217.5.5:443 (ESTABLISHED)
Slack 361 JayStarr 61u IPv4 0xfd5521e049022f97 0t0 TCP 192.168.1.6:59521->18.204.248.223:443 (ESTABLISHED)
Slack 361 JayStarr 64u IPv4 0xfd5521e05f03f637 0t0 TCP 192.168.1.6:53829->52.84.216.34:443 (ESTABLISHED)
rapportd 386 JayStarr 3u IPv4 0xfd5521e0494d9377 0t0 TCP *:49170 (LISTEN)
rapportd 386 JayStarr 4u IPv6 0xfd5521e04678480f 0t0 TCP *:49170 (LISTEN)
commerce 434 JayStarr 13u IPv4 0xfd5521e0553f68f7 0t0 TCP 192.168.1.6:54083->23.57.46.171:443 (ESTABLISHED)
commerce 434 JayStarr 15u IPv4 0xfd5521e05f5d8f97 0t0 TCP 192.168.1.6:54097->23.57.46.171:443 (ESTABLISHED)
Adobe\x20 863 JayStarr 11u IPv4 0xfd5521e050063cd7 0t0 TCP 127.0.0.1:15292 (LISTEN)
httpd 1022 _www 4u IPv6 0xfd5521e0490156cf 0t0 TCP *:80 (LISTEN)
httpd 1022 _www 5u IPv4 0xfd5521e0490238f7 0t0 TCP *:* (CLOSED)
httpd 1023 _www 4u IPv6 0xfd5521e0490156cf 0t0 TCP *:80 (LISTEN)
httpd 1023 _www 5u IPv4 0xfd5521e0490238f7 0t0 TCP *:* (CLOSED)
httpd 1024 _www 4u IPv6 0xfd5521e0490156cf 0t0 TCP *:80 (LISTEN)
httpd 1024 _www 5u IPv4 0xfd5521e0490238f7 0t0 TCP *:* (CLOSED)
firefox 1634 JayStarr 36u IPv4 0xfd5521e0494d9cd7 0t0 TCP 192.168.1.6:53618->13.33.253.58:443 (ESTABLISHED)
git-remot 5632 JayStarr 7u IPv4 0xfd5521e04f2a88f7 0t0 TCP 192.168.1.6:60306->192.30.253.113:443 (CLOSED)
git-remot 5633 JayStarr 7u IPv4 0xfd5521e049327cd7 0t0 TCP 192.168.1.6:60307->192.30.253.113:443 (CLOSED)
git 5654 JayStarr 7u IPv4 0xfd5521e04f2a88f7 0t0 TCP 192.168.1.6:60306->192.30.253.113:443 (CLOSED)
git-crede 5655 JayStarr 7u IPv4 0xfd5521e04f2a88f7 0t0 TCP 192.168.1.6:60306->192.30.253.113:443 (CLOSED)
git 5659 JayStarr 7u IPv4 0xfd5521e049327cd7 0t0 TCP 192.168.1.6:60307->192.30.253.113:443 (CLOSED)
git-crede 5661 JayStarr 7u IPv4 0xfd5521e049327cd7 0t0 TCP 192.168.1.6:60307->192.30.253.113:443 (CLOSED)
git-remot 5769 JayStarr 7u IPv4 0xfd5521e0494fef97 0t0 TCP 192.168.1.6:60329->192.30.253.113:443 (CLOSED)
git 5787 JayStarr 7u IPv4 0xfd5521e0494fef97 0t0 TCP 192.168.1.6:60329->192.30.253.113:443 (CLOSED)
git-crede 5788 JayStarr 7u IPv4 0xfd5521e0494fef97 0t0 TCP 192.168.1.6:60329->192.30.253.113:443 (CLOSED)
git-remot 5811 JayStarr 7u IPv4 0xfd5521e054f77cd7 0t0 TCP 192.168.1.6:60338->192.30.253.113:443 (CLOSED)
git 5822 JayStarr 7u IPv4 0xfd5521e054f77cd7 0t0 TCP 192.168.1.6:60338->192.30.253.113:443 (CLOSED)
git-crede 5823 JayStarr 7u IPv4 0xfd5521e054f77cd7 0t0 TCP 192.168.1.6:60338->192.30.253.113:443 (CLOSED)
git-remot 6014 JayStarr 7u IPv4 0xfd5521e0502dacd7 0t0 TCP 192.168.1.6:60380->192.30.253.113:443 (CLOSED)
git 6027 JayStarr 7u IPv4 0xfd5521e0502dacd7 0t0 TCP 192.168.1.6:60380->192.30.253.113:443 (CLOSED)
git-crede 6028 JayStarr 7u IPv4 0xfd5521e0502dacd7 0t0 TCP 192.168.1.6:60380->192.30.253.113:443 (CLOSED)
git-remot 6118 JayStarr 7u IPv4 0xfd5521e048c91cd7 0t0 TCP 192.168.1.6:60404->192.30.253.113:443 (CLOSED)
git 6121 JayStarr 7u IPv4 0xfd5521e048c91cd7 0t0 TCP 192.168.1.6:60404->192.30.253.113:443 (CLOSED)
git-crede 6122 JayStarr 7u IPv4 0xfd5521e048c91cd7 0t0 TCP 192.168.1.6:60404->192.30.253.113:443 (CLOSED)
git-remot 6320 JayStarr 7u IPv4 0xfd5521e0494d7637 0t0 TCP 192.168.1.6:61115->192.30.253.112:443 (CLOSED)
git 6323 JayStarr 7u IPv4 0xfd5521e0494d7637 0t0 TCP 192.168.1.6:61115->192.30.253.112:443 (CLOSED)
git-crede 6324 JayStarr 7u IPv4 0xfd5521e0494d7637 0t0 TCP 192.168.1.6:61115->192.30.253.112:443 (CLOSED)
git-remot 7812 JayStarr 6u IPv4 0xfd5521e04e01b377 0t0 TCP 192.168.1.6:62316->192.30.253.112:443 (CLOSED)
git-remot 7813 JayStarr 6u IPv4 0xfd5521e0494fe637 0t0 TCP 192.168.1.6:62315->192.30.253.112:443 (CLOSED)
git 7818 JayStarr 6u IPv4 0xfd5521e0494fe637 0t0 TCP 192.168.1.6:62315->192.30.253.112:443 (CLOSED)
git 7819 JayStarr 6u IPv4 0xfd5521e04e01b377 0t0 TCP 192.168.1.6:62316->192.30.253.112:443 (CLOSED)
git-crede 7820 JayStarr 6u IPv4 0xfd5521e0494fe637 0t0 TCP 192.168.1.6:62315->192.30.253.112:443 (CLOSED)
git-crede 7821 JayStarr 6u IPv4 0xfd5521e04e01b377 0t0 TCP 192.168.1.6:62316->192.30.253.112:443 (CLOSED)
git-remot 9292 JayStarr 7u IPv4 0xfd5521e04677f8f7 0t0 TCP 192.168.1.6:61542->192.30.253.112:443 (CLOSED)
git-remot 9293 JayStarr 7u IPv4 0xfd5521e04677d377 0t0 TCP 192.168.1.6:61541->192.30.253.112:443 (CLOSED)
git 9296 JayStarr 7u IPv4 0xfd5521e04677d377 0t0 TCP 192.168.1.6:61541->192.30.253.112:443 (CLOSED)
git-crede 9297 JayStarr 7u IPv4 0xfd5521e04677d377 0t0 TCP 192.168.1.6:61541->192.30.253.112:443 (CLOSED)
git 9300 JayStarr 7u IPv4 0xfd5521e04677f8f7 0t0 TCP 192.168.1.6:61542->192.30.253.112:443 (CLOSED)
git-crede 9301 JayStarr 7u IPv4 0xfd5521e04677f8f7 0t0 TCP 192.168.1.6:61542->192.30.253.112:443 (CLOSED)
````

Nothing is listening on 8080... The only way i can get it working again is restarting my computer. Then it works fine.

====================================================================
###### More Details

I'm on a mac
I'm using the terminal in vs code
webpack-dashboard version 2.0.0
The output of running `echo $TERM` = xterm-256color