Cant use NG

[dertuerke]

Please provide us with the following information:

OS?

Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)

Mac OSX Sierra

Versions.

Please run ng --version. If there's nothing outputted, please run in a Terminal: node --version and paste the result here:

Node: 7.6.0

Repro steps.

Was this an app that wasn't created using the CLI? What change did you do on your code? etc.

I cant use ng --version, if i use yarn global add.

The log given by the failure.

Normally this include a stack trace and some more information.

/Users/burak/.config/yarn/global/node_modules/@angular/cli/bin/ng:95
const hasOldDevDep = !!packageJsonProject.devDependencies['angular-cli'];
^

TypeError: Cannot read property 'angular-cli' of undefined
at Object. (/Users/burak/.config/yarn/global/node_modules/@angular/cli/bin/ng:95:60)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
at Module.runMain (module.js:605:10)
at run (bootstrap_node.js:422:7)
at startup (bootstrap_node.js:143:9)
at bootstrap_node.js:537:3

Mention any other details that might be useful.

---

Thanks! We'll be in touch soon.

[sumitarora]

@dertuerke which version of CLI you are using currently when you added yarn?

[dertuerke]

@sumitarora i use yarn 0.21.3. If use use npm i get NO problems

[antoinegomez]

Same here. It tries to read my package.json that does not have any devDep so it crashes.

Here is a line to patch:

const packageJsonProject = Object.assign({ dependencies: {}, devDependencies: {} }, require(packageJsonProjectPath));

File: cli/bin/ng
Line 93

File on my system for reference:
~/.nvm/versions/node/v6.9.1/lib/node_modules/@angular/cli/bin/ng

[clrajapaksha]

I am facing to the same issue. Please help.

`C:\Users\chathuranga_08290\AppData\Roaming\npm\node_modules@angular\cli\bin\ng:95
const hasOldDevDep = !!packageJsonProject.devDependencies['angular-cli'];
^

TypeError: Cannot read property 'angular-cli' of undefined
at Object. (C:\Users\chathuranga_08290\AppData\Roaming\npm\node_modules@angular\cli\bin\ng:95:60)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:394:7)
at startup (bootstrap_node.js:149:9)
at bootstrap_node.js:509:3
`

[clrajapaksha]

I resolved the issue by doing following things,
uninstall node
reinstall node
npm cache clear
npm install -g @angular/cli
ng new myapp

[dertuerke]

@clrajapaksha the problem comes with YARN. If you use Yarn to install the cli global.

[sumitarora]

Fixed with this #5074

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