Build on Windows 8: npm EBADPLATFORM error

[albertosantini]

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Current behavior
Trying to build angular following the steps suggested in DEVELOPER.md doc.

I cloned the project git clone https://github.com/angular/angular.git and executed npm install (node 6.8.0 and npm 3.10.8):

C:\My\Dev\snippets\angular>npm install          
angular-srcs@2.1.0 C:\My\Dev\snippets\angular   
+-- @types/angularjs@1.5.13-alpha               
+-- @types/fs-extra@0.0.22-alpha                
+-- @types/hammerjs@2.0.22-alpha                
...
+-- zip-stream@0.5.2                                                                                          
| +-- lodash@3.2.0                                                                                            
| `-- readable-stream@1.0.33                                                                                  
`-- zone.js@0.6.25                                                                                            

npm ERR! Windows_NT 6.3.9600                                                                                  
npm ERR! argv "C:\\My\\Programs\\nodejs\\node.exe" "C:\\My\\Programs\\nodejs\\node_modules\\npm\\bin\\npm-cli.
js" "install"                                                                                                 
npm ERR! node v6.8.0                                                                                          
npm ERR! npm  v3.10.8                                                                                         
npm ERR! code EBADPLATFORM                                                                                    

npm ERR! notsup Unsupported platform for fsevents@1.0.14: wanted {"os":"darwin","arch":"any"} (current: {"os":
"win32","arch":"x64"})                                                                                        
npm ERR! notsup Valid OS:    darwin                                                                           
npm ERR! notsup Valid Arch:  any                                                                              
npm ERR! notsup Actual OS:   win32                                                                            
npm ERR! notsup Actual Arch: x64                                                                              

npm ERR! Please include the following file with any support request:                                          
npm ERR!     C:\My\Dev\snippets\angular\npm-debug.log                                                         

npm fails to install the deps.

Expected behavior

I expect no EBADPLATFORM error, installing the deps.
I tried npm install with cmd and git bash (2.10.1) shells: same result.

Minimal reproduction of the problem with instructions

See above how to reproduce the error.
Similar to #8815, but it is not the same, because I cloned the project.

What is the motivation / use case for changing the behavior?

I cloned locally the repo to contribute.

Please tell us about your environment:

Windows 8.1 (Version 6.3 - Build 9600)
node v6.8.0
npm v3.10.8

• Angular version: master

• Browser: [not applicable]

• Language: [not applicable]

• Node (for AoT issues): not applicable

[DzmitryShylovich]

fsevents is an OSX-only module and you cannot install it on Windows.

[b-strauss]

@DzmitryShylovich maybe it would be a good idea to mention what the platform requirements are to build angular inside CONTRIBUTING.md ?

[albertosantini]

@DzmitryShylovich Usually, installing other packages, on Windows, you get the following messages for that dep:

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\chokidar\node_modules\fsevents):

npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.0.14: wanted {"os":"darwin",
"arch":"any"} (current: {"os":"win32","arch":"x64"})                                                          

It is a warning, not an error and the other deps are installed.

What is your point? Cannot build angular on Windows?

[manklu]

@albertosantini

Trying to build angular following the steps suggested in DEVELOPER.md doc.

Then you should have a look at the prerequisites.

Node.js, (version >=5.4.1 <6)

With Node.js 5.x you get the warning that @DzmitryShylovich mentioned.

I think this could be closed.

[pkozlowski-opensource]

Yeh, for now we require Node.js, (version >=5.4.1 <6)

[albertosantini]

Thanks for the reply.
I am sorry for the noise.

In package.json there is "node": ">= 5.4.1 < 7".

Indeed I read in the doc Node.js, (version >=5.4.1 <6), but I thought it was a typo or an outdated info.

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