Cannot do Gulp production

[selective5296]

Here is the log:
0 info it worked if it ends with ok
1 verbose cli [ 'C:\Program Files\nodejs\node.exe',
1 verbose cli 'C:\Users\my_user\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js',
1 verbose cli 'run',
1 verbose cli 'gulp',
1 verbose cli 'production' ]
2 info using npm@2.14.12
3 info using node@v10.15.1
4 verbose run-script [ 'pregulp', 'gulp', 'postgulp' ]
5 info pregulp gulp-starter@3.1.0
6 info gulp gulp-starter@3.1.0
7 verbose unsafe-perm in lifecycle true
8 info gulp-starter@3.1.0 Failed to exec gulp script
9 verbose stack Error: gulp-starter@3.1.0 gulp: gulp "production"
9 verbose stack Exit status 7
9 verbose stack at EventEmitter. (C:\Users\my_user\AppData\Roaming\npm\node_modules\npm\lib\utils\lifecycle.js:214:16)
9 verbose stack at EventEmitter.emit (events.js:189:13)
9 verbose stack at ChildProcess. (C:\Users\my_user\AppData\Roaming\npm\node_modules\npm\lib\utils\spawn.js:24:14)
9 verbose stack at ChildProcess.emit (events.js:189:13)
9 verbose stack at maybeClose (internal/child_process.js:970:16)
9 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
10 verbose pkgid gulp-starter@3.1.0
11 verbose cwd C:\Users\my_user\Documents\webvr\konterball-master
12 error Windows_NT 10.0.17134
13 error argv "C:\Program Files\nodejs\node.exe" "C:\Users\my_user\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js" "run" "gulp" "production"
14 error node v10.15.1
15 error npm v2.14.12
16 error code ELIFECYCLE
17 error gulp-starter@3.1.0 gulp: gulp "production"
17 error Exit status 7
18 error Failed at the gulp-starter@3.1.0 gulp script 'gulp "production"'.
18 error This is most likely a problem with the gulp-starter package,
18 error not with npm itself.
18 error Tell the author that this fails on your system:
18 error gulp "production"
18 error You can get their info via:
18 error npm owner ls gulp-starter
18 error There is likely additional logging output above.
19 verbose exit [ 1, true ]