Node 10: TypeError: Cannot read property '1' of null

[pdesjardins90]

After upgrading node, WCT doesn't work anymore. The error is:
TypeError: Cannot read property '1' of null

Node v10.0.0
WCT version: 6.5

Steps to reproduce:

• polymer init (shop app)
• polymer test

Stack trace:

cli runtime exception: TypeError: Cannot read property '1' of null
error:   TypeError: Cannot read property '1' of null
    at module.exports (/Users/x/.config/yarn/global/node_modules/promisify-node/utils/args.js:9:63)
    at processExports (/Users/x/.config/yarn/global/node_modules/promisify-node/index.js:61:29)
    at processExports (/Users/x/.config/yarn/global/node_modules/promisify-node/index.js:82:25)
    at processExports (/Users/x/.config/yarn/global/node_modules/promisify-node/index.js:82:25)
    at processExports (/Users/x/.config/yarn/global/node_modules/promisify-node/index.js:82:25)
    at module.exports (/Users/x/.config/yarn/global/node_modules/promisify-node/index.js:164:10)
    at /Users/x/.config/yarn/global/node_modules/web-component-tester/runner/paths.js:49:23
    at Generator.next (<anonymous>)
    at /Users/x/.config/yarn/global/node_modules/web-component-tester/runner/paths.js:20:71
    at new Promise (<anonymous>)

[web-padawan]

See #280

[paladox]

I get this error too.

[t1djani]

Same for me.

[jrpool]

Likewise. My stacktrace entries differ in the path, replacing the above
.config/yarn/global with
.nvm/current/versions/node/v10.2.1/lib/node_modules/polymer-cli.

The reason seems to be an incompatibility with Node 10. See Polymer/pwa-starter-kit#112.

[akc42]

I think its this problem. I went through with the debugger and it failed when trying to promisify glob
nodegit/promisify-node#28

[ghost]

Got this too. Had to switch travis ci to use 9 for now.

[paladox]

There's a new release for promisify-node which fixes support for nodejs 10 https://github.com/nodegit/promisify-node/commits/master

[paladox]

This was fixed in 29a85f9 as the repo was moved to there.

[pdesjardins90]

I can confirmed this is fixed and released, thanks guys!

[usergenic]

(FWIW this was fixed by using node's own promisify and dropping support for Node < 8)

[mdaijaj]

I found this error then I re-install express module.