I am creating a sample angular2 web app. For that i have installed node.js (v 7.1.0)and NPM (v 3.10.9).
and now after opening system command prompt when I execute the command :
NPM install -g #angular/cli
to install angular cli I am getting the following shown results.
After doing ng -v to check the version of cli installed I am not getting the version number.
Is the cli not installed correctly?
or do I need to set any path variable in environment var?
What has to be done here? Please advise.
C:\Users\27727>d:
D:\>cd learn-angular
D:\learn-angular>npm i -g #angular/cli
npm WARN gentlyRm not removing C:\Users\27727\AppData\Roaming\npm\ng.cmd as it w
asn't installed by C:\Users\27727\AppData\Roaming\npm\node_modules\#angular\cli
npm WARN gentlyRm not removing C:\Users\27727\AppData\Roaming\npm\ng as it wasn'
t installed by C:\Users\27727\AppData\Roaming\npm\node_modules\#angular\cli
C:\Users\27727\AppData\Roaming\npm\ng -> C:\Users\27727\AppData\Roaming\npm\node
_modules\#angular\cli\bin\ng
C:\Users\27727\AppData\Roaming\npm
`-- #angular/cli#1.7.0
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.0.0 (node_modules\#a
ngular\cli\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#
1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}
)
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.0.0 (node_modules\#a
ngular\cli\node_modules\webpack-dev-server\node_modules\chokidar\node_modules\fs
events):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#
1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}
)
npm WARN ajv-keywords#3.1.0 requires a peer of ajv#^6.0.0 but none was installed
.
D:\learn-angular>ng -v
'ng' is not recognized as an internal or external command,
operable program or batch file.
D:\learn-angular>
In your system please check this path ( C:\Program Files\nodejs ) is there in environment variables.
Related
I'm trying to install Angular using the Angular CLI but I'm getting an error when I try to run this command.
Command
npm install -g #angular/cli
Error:
C:\Users\abc>npm install -g #angular/cli
C:\Users\abc\AppData\Roaming\npm\ng -> C:\Users\abc\AppData\Roaming\npm\node_modules\#angular\cli\bin\ng
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.7 (node_modules\#angular\cli\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.7: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
+ #angular/cli#7.3.6
updated 1 package in 102.686s
Node Version v10.15.3
This is a warning not an error, and it's because you're on Windows. FSevents only works on Mac so it's not needed on Windows and that's why it's SKIPPING OPTIONAL DEPENDENCY.
And no as of right now there is no way to get rid of that being printed into the console so just ignore it given the fact that it's not doing anything anyways rather it's just being a bit verbose and telling you that it's not being used.
This is because you're running on windows. A lot of apps use that library, but it only works on the Mac, so they use something else for Windows and Linux. That's why it's listed as "optional". You can ignore the warning.
I tried to install Webpack into an existing directory of a project using this command:
npm install --save-dev webpack
However, it returns the following errors:
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#1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN extract-text-webpack-plugin#2.1.2 requires a peer of webpack#^2.2.0 but none was installed.
npm WARN webpack-dev-server#2.4.5 requires a peer of webpack#^2.2.0 but none was installed.
How do I fix this and install Webpack?
It seems that you are running this on Win32 according to
wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}
Try to update your node/npm version.
Check out a version manager for node. For windows you can try this one.
Edit:
Author did not respond.
Things tried that might have worked:
npm install -f
npm install webpack#2.2.0
I am trying to install angularfire2 from npm by running, but I keep getting this error
D:\angular\firebase\apartment>npm install angularfire2 firebase --save
apartment#0.0.0 D:\angular\firebase\apartment
+-- angularfire2#4.0.0-rc.1
`-- firebase#4.1.3
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#1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN angularfire2#4.0.0-rc.1 requires a peer of #angular/common#^4.0.0 but none was installed.
npm WARN angularfire2#4.0.0-rc.1 requires a peer of #angular/compiler#^4.0.0 but none was installed.
npm WARN angularfire2#4.0.0-rc.1 requires a peer of #angular/core#^4.0.0 but none was installed.
npm WARN angularfire2#4.0.0-rc.1 requires a peer of #angular/platform-browser#^4.0.0 but none was installed.
npm WARN angularfire2#4.0.0-rc.1 requires a peer of #angular/platform-browser-dynamic#^4.0.0 but none was installed.
Last 5 of npm warn's are due to dependencies. You don't have the required modules to install angularfire.
Two possible solutions are, either downgrade your npm i.e. lower than 3.
npm < 3 can download the depending modules by itself or install the 5 depending modules first.
I've installed nodejs v7.5.0 and npm v4.1.2 in my 32 bit linux mint machine. while I'm typin' npm install into terminal, it gives me these informations instead of being installed npm packages are:
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#1.0.17: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"ia32"})
npm WARN #angular/core#2.4.7 requires a peer of rxjs#^5.0.1 but none was installed.
npm WARN shwokat#1.0.0 No description
npm WARN shwokat#1.0.0 No repository field
Now where's my wrong? how to solve it and install npm packages correctly, please let me know?
Try sudo npm install npm -g
Go through the official guide.
On Windows 10 with nodejs 7.5.0, after installing the ionic 2 final version there is a peer dependency error (rxjs#5.0.0-beta.12) when installing angularfire2.
Tried on Linux but the result was the same.
ionic -v
2.2.1
npm install angularfire2 --save
ionic-hello-world# D:\nodejs\unRated
+-- angularfire2#2.0.0-beta.7
-- UNMET PEER DEPENDENCY rxjs#5.0.0-beta.12
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#1.0.17: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN angularfire2#2.0.0-beta.7 requires a peer of rxjs#^5.0.1 but none was installed.
Anyone with the same issue on the final ionic 2 release?
You have to install AngularFire 2.0.0-beta.6 to make it working.
npm install firebase#3.3.0 angularfire2#2.0.0-beta.6
Check this blog for more information https://chriztalk.com/ionic-2-and-firebase/