yarn start error - sh: start: command not found

[idkjs]

cloned, ran yarn, then yarn start. I get 'sh: start: command not found'. Any idea why this is?

debug log:

Last login: Sun Aug 20 10:08:29 on ttys002
Ensos-MacBook-Pro:~ shingdev$ cd /Users/shingdev/.npm/_logs/2017-08-20T08_07_37_227Z-debug.log
-bash: cd: /Users/shingdev/.npm/_logs/2017-08-20T08_07_37_227Z-debug.log: Not a directory
Ensos-MacBook-Pro:~ shingdev$ cat /Users/shingdev/.npm/_logs/2017-08-20T08_07_37_227Z-debug.log
0 info it worked if it ends with ok
1 verbose cli [ '/Users/shingdev/.nvm/versions/node/v8.2.1/bin/node',
1 verbose cli   '/Users/shingdev/.nvm/versions/node/v8.2.1/bin/npm',
1 verbose cli   'run',
1 verbose cli   'start:windows' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prestart:windows', 'start:windows', 'poststart:windows' ]
5 info lifecycle [email protected]~prestart:windows: [email protected]
6 info lifecycle [email protected]~start:windows: [email protected]
7 verbose lifecycle [email protected]~start:windows: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~start:windows: PATH: /Users/shingdev/.nvm/versions/node/v8.2.1/lib/node_modules/npm/bin/node-gyp-bin:/Users/shingdev/CODE/Restos/react-relay-graphql-starter-kit/node_modules/.bin:/Users/shingdev/.nvm/versions/node/v8.2.1/lib/node_modules/npm/bin/node-gyp-bin:/Users/shingdev/CODE/Restos/react-relay-graphql-starter-kit/node_modules/.bin:/Users/shingdev/Users/shingdev/platform-tools/bin:/usr/local/bin:/usr/local/sbin:~/bin:/Users/shingdev/.nvm/versions/node/v8.2.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
9 verbose lifecycle [email protected]~start:windows: CWD: /Users/shingdev/CODE/Restos/react-relay-graphql-starter-kit
10 silly lifecycle [email protected]~start:windows: Args: [ '-c',
10 silly lifecycle   'start nodemon --exec babel-node server & start webpack --watch' ]
11 info lifecycle [email protected]~start:windows: Failed to exec start:windows script
12 verbose stack Error: [email protected] start:windows: `start nodemon --exec babel-node server & start webpack --watch`
12 verbose stack spawn ENOENT
12 verbose stack     at ChildProcess.<anonymous> (/Users/shingdev/.nvm/versions/node/v8.2.1/lib/node_modules/npm/lib/utils/spawn.js:33:16)
12 verbose stack     at emitTwo (events.js:125:13)
12 verbose stack     at ChildProcess.emit (events.js:213:7)
12 verbose stack     at maybeClose (internal/child_process.js:921:16)
12 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)
13 verbose pkgid [email protected]
14 verbose cwd /Users/shingdev/CODE/Restos/react-relay-graphql-starter-kit
15 verbose Darwin 17.0.0
16 verbose argv "/Users/shingdev/.nvm/versions/node/v8.2.1/bin/node" "/Users/shingdev/.nvm/versions/node/v8.2.1/bin/npm" "run" "start:windows"
17 verbose node v8.2.1
18 verbose npm  v5.3.0
19 error file sh

Thank you.