Failing to install dependencies

[SirCameron]

I'm unable to run the example apps. npm install and yarn fail.

output:

> @nodegui/nodegui@0.1.1 install /Users/[redacted]/Web/react-nodegui/examples/weather-app-widget/node_modules/@nodegui/nodegui
> npm -v

6.10.1

> @nodegui/qode@1.0.0 postinstall /Users/[redacted]/Web/react-nodegui/examples/weather-app-widget/node_modules/@nodegui/qode
> node install.js

Local Qode 1.0.0 archive doesnt exists... Copying Qode from cache...
Extracting binaries...

> @nodegui/nodegui@0.1.1 postinstall /Users/[redacted]/Web/react-nodegui/examples/weather-app-widget/node_modules/@nodegui/nodegui
> npm run build:addon


> @nodegui/nodegui@0.1.1 build:addon /Users/[redacted]/Web/react-nodegui/examples/weather-app-widget/node_modules/@nodegui/nodegui
> node-gyp -j 8 configure build

  CC(target) Release/obj.target/nothing/../../node-addon-api/src/nothing.o
  TOUCH 8d54a0613d50a84adae49a5312f848b52b1b3ed9.intermediate
  ACTION binding_gyp_qtnode_target_symlink_qt_headers 8d54a0613d50a84adae49a5312f848b52b1b3ed9.intermediate
  LIBTOOL-STATIC Release/nothing.a
Traceback (most recent call last):
  File "./gyp-mac-tool", line 611, in <module>
    sys.exit(main(sys.argv[1:]))
  File "./gyp-mac-tool", line 30, in main
    exit_code = executor.Dispatch(args)
  File "./gyp-mac-tool", line 45, in Dispatch
    return getattr(self, method)(*args[1:])
  File "./gyp-mac-tool", line 248, in ExecFilterLibtool
    if not libtool_re.match(line) and not libtool_re5.match(line):
TypeError: cannot use a string pattern on a bytes-like object
make: *** [Release/nothing.a] Error 1
rm 8d54a0613d50a84adae49a5312f848b52b1b3ed9.intermediate
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:190:23)
gyp ERR! stack     at ChildProcess.emit (events.js:196:13)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:256:12)
gyp ERR! System Darwin 18.6.0
gyp ERR! command "/usr/local/Cellar/node/12.1.0/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "-j" "8" "configure" "build"
gyp ERR! cwd /Users/[redacted]/Web/react-nodegui/examples/weather-app-widget/node_modules/@nodegui/nodegui
gyp ERR! node -v v12.1.0
gyp ERR! node-gyp -v v5.0.2
gyp ERR! not ok
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @nodegui/nodegui@0.1.1 build:addon: `node-gyp -j 8 configure build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @nodegui/nodegui@0.1.1 build:addon script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/[redacted]/.npm/_logs/2019-08-15T19_04_16_298Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @nodegui/nodegui@0.1.1 postinstall: `npm run build:addon`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @nodegui/nodegui@0.1.1 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

[a7ul]

Is this only with this specific example or all of them?

[a7ul]

Could you try the starter repo https://github.com/nodegui/react-desktop-starter ?

[a7ul]

Alright this seems to be node-gyp issue.
libxmljs/libxmljs#469

Seems like you have python3 installed and node-gyp has issues with it. Would it be possible for you to try with python2 or alternatives as suggested on the above link?

I am planning to add precompiled binary support for this library. But until then this might help.

[jordanmkoncz]

@master-atul thanks for finding that, I had this issue too and I can confirm that switching to Python 2 for the installation resolves it.

If you have Python installed using pyenv (https://github.com/pyenv/pyenv), this is very easy to do (and if you don't have Python installed using pyenv, I highly recommend it). Basic steps with pyenv:

• pyenv install 2.7.16 (assuming a version of Python 2 is not already installed)
• pyenv shell 2.7.16
• npm install

These steps will set your current shell/terminal so that only Python 2 is available, and then when you run npm install from that same shell, the installation/build works.

[a7ul]

Related node-gyp issues: nodejs/node-gyp#193

[a7ul]

Will update Readme and close this issue : https://github.com/nodegui/nodegui/projects/1#card-25295641