I am new to AngularJS, just started an online course.
I am trying to install angular CLI on my computer at work running Windows 7.
I opened command line as administrator and running npm install -g #angular/cli. Installation starts and after a few minutes I get an error:
I see the notification "operation not permitted", but I am the administrator of the computer and the command line I run as administrator.
What am I doing wrong?
The same installation I did on my laptop at home and it was successful.
I am checking with our IT support about other possible causes and will appreciate any help.
This is not a duplicate of Fail to install npm package “npm ERR! errno -4048” or npm install -g angular-cli fails.
Ignoring the error and running gn -v I get the following:
Is this correct? Was Angular CLI installed?
These issues are because of the company proxy settings.
Check with your admin to get the proxy for http or https.
It will be something like this:
http_proxy = http://http.myproxy.com:8000
https_proxy = http://http.myproxy.com:8000
Replace myproxy with the name of company proxy.
Then go to the command prompt and run the following command to set the proxy. Later you can run any command like npm install -g #angular/cli to run. It will work
npm config set proxy http://http.myproxy.com:8000
npm config set https-proxy http://http.myproxy.com:8000
That fsevents library has peculiarities on Windows. So I suggest you ignore the error message and run ng -v from the command prompt to confirm you got the Angular CLI libraries installed.
You need to run the npm commands on node.js command prompt but not on windows command line.
Workaround: install git bash on windows.
As the error message suggest, you don't have some permissions to execute your command.
Depending on your system, you should run the command as an administrator.
Also, don't mix AngularJS (the first Angular framework) and Angular (also known as Angular 2, 4 and 5 now) . They are radically different in their syntax and uses.
Run below command and try installing angular cli again.
npm cache clean -f
This worked for me manytimes.
What is npm?
Whenever I browse through some project they ask me to run npm command, something like this
npm install -g node-windows
I went through some blog posts to learn about npm and I installed Node.js. However, when I run the above code in Node.js, I get the following errors:
When I browsed further, I came to know that the windows user can run the command from the cmd prompt window, but when I do that I get some output like this:
Which just generate a text file nothing else.
My questions:
How can I get started with the AngularJS2?
How can I run an npm command?
Do I require a command prompt to run the npm command (in Windows), or I can just use Node.js?
When I use the command npm install in my command prompt, I get the following output:
How to get started with the angularJS2
Follow this link and set up the project by following instructions
How to run a npm command
npm stands for Node Package Manager, and therefore you need Node.js installed before you can run npm commands.
Follow this and install the latest version. And restart the command prompt.
Do I require a command prompt to run npm commands (in Windows), or can I just use Node.js?
Yes, you need to run npm commands from the command line (in Windows).
E.g., npm install
You get the warning because there is no package.json file present where you are running the command.
ENOENT stands for Error NO ENTrey
Navigate to the project folder using the following command and then run npm install
cd <projectpath>
The AngularJS 2 website has everything you need to be covered. Their quickstart guide alongside with the quickseed zip file helps a lot.
But, in case you missed some points:
yes, you will need npm/NodeJS. So, download the latest distribution and have a clean installation of it.
you can execute the npm command with its parameters from within the Windows cmd.
the quickseed ZIP file contains all the files you need to see a live and quick example running locally. Unzip it on your workplace and navigate to it using the windows cmd. When inside the root folder of the unzipped package, execute npm install and right after it npm start.
Take the learning path. Step by step, all your questions will be answered.
You need to use an admin prompt for global installation (-g).
I have installed nodejs,express on ubuntu but when i type "express test" command on terminal on ubuntu, its not creating the folders etc (package.json,app.js, view folder ect).It simply prompts in the next line.
Please help
If you want to generate the scaffolding for a new express app you can use the express-generator.
First you need to install the needed module globaly.
sudo npm install express-generator -g
Then you can use this command to generate your scaffolding.
express <my_app>
More info here http://expressjs.com/starter/generator.html
I'm using Oracle VirtualBox in Windows 7 with an image of Ubuntu 13.04 x86.
I've already downloaded a github project, I've run:
sudo npm install -g mocha
sudo npm install mocha
npm install
nodejs is installed (nodejs --version retrieves v0.10.25)
If I run:
which mocha
I get: /usr/bin/mocha
Then, I run:
mocha test/test1.js
I just get the command prompt, nothing happens, I don't see the tests running.
I went to the mocha folder inside node_modules/mocha and I see two files: mocha and _mocha, I run both and nothing happens
When I say "I just get the command prompt", this is what I can see:
ubuntu#ubuntu-VirtualBox:~/guillermo/myproject$ mocha --reporters
ubuntu#ubuntu-VirtualBox:~/guillermo/myproject$
Any advise?
Thanks!!! Guillermo.
You probably installed the wrong Ubuntu package for node.js. If you did sudo apt-get install node, then the package "ax25-node" is installed instead of node.js.
See this page on how to install node.js on Ubuntu using nvm.
If you want to use ubuntu's package repository for node.js, then do sudo apt-get install nodejs, and the resulting binary is called nodejs instead of node.
Okay I am running node on windows (7). Using npm I just installed modules to d:\ directory. Therefore my files structure looks like the following:
D:\
-myproject
-node_modules
-.bin
-express
However, when I am in this 'myproject' directory, I can't seem to run 'express' for example:
D:\myproject\express site
'express' is not recognized as an internal or external command, operable program or batch file.
Am I doing anything wrong?
Try:
npm install -g express-generator#3
That solved problem for me.
Edit: for version 4
npm install express-generator -g
Description:
express is the package for dependency of express js.
express-generator is the package for enabeling express command and create a sample project, etc.
Assuming that this is kept separate for the decoupling of project dependency with cli tool of express.
Another SO ref: https://stackoverflow.com/a/41311733/1666582
Here's what to type in the command line to make it work in windows:
npm install express-generator -g
[Source: http://expressjs.com/starter/generator.html]
My guess is that you didn't install Express globally. You can install express globally (and therefore available in your PATH) with the following command (see http://expressjs.com/guide.html) :
npm install -g express
The way you install it is available only in the folder that you installed it and there is nothing wrong with that approach. There is very little advantage of having it available globally.
If express is not in your PATH you can run it by entering the full path to it:
\myproject\node_modules\.bin\express.cmd
With the release of Express 4.0.0 it looks like you need to do
npm install -g express-generator
We need to set path for express global directory
C:\Users[User_Name]\AppData\Roaming\npm\
After add a new path, please reopen the CMD console
Tried all of these and never worked. A repair of Node.js by kicking of installation and selecting repair option does the magic.
Cheers
What worked for me was:
I used the windows command prompt instead of the node.js command prompt.
In windows 10 simply type in the windows search bar for "node"
You see a node.js desktop app and a node js command prompt.
Choose the "node js command prompt"
Type in the command prompt
npm install express-generator -g
Then navigate somewhere and type in:
express your-website-text-here -e
A directory with express files will be generated. Also now you won't see the express error.
I was able to fix with the following package install:
npm install express-generator -g
Thanks
When you install Node.js, the below path is added to the Windows OS %Path% variable, I'm presuming similar happens on other operating systems as well:
C:\Users\<your-windows-username>\AppData\Roaming\npm
In my case, because I use a work Windows laptop for an employer that severely restricts what employees can do on their machines (I.e. many actions require elevated admin privileges), Node.js was being prevented from adding the above path to the Windows %Path% environment variable, and much to my chagrin the Node.js installation was silent about it. Navigate to above folder and you will notice the express command lives there, see screenshot below.
How did I figure this out? I did a fresh installation of Node.js on a personal, home Windows machine that has no admin privilege restrictions like my work machine does, compared the before and after %Path% value, and noticed the addition of that path. My work machine was missing it.
I had no choice but to add the path manually to %Path%, and then express was recognized from within any path I ran it.
I was able to fix this with:
npm install express-generator -g
I tried all the above solution, no luck for me.
Open "Node.js" command prompt and tried as administrator. It is working fine for me. Don't try with windows command prompt.
I have the same problem and understand the solution, but i can´t undestand why, running npm install -g express, express.bat isn´t added automatically to Path.
Running with npm install -g express have the same result. Download packages and store in node_modules, but express.bat isn´t added to path.
Run the node command prompt as administrator and then install express globaly
npm install -g express
and then go to folder where you want to install express generator, open command prompt there and run this command
npm install express-generator, it will then fix the issue
I have tried out all above solutions, but its did't worked for me, finally I have re-installed the node.js with newer version and started to express install process again. Its worked for me.
npm install -g express
npm install -g express-generator
What command are you using to open the directory?
That error means CMD can't find the "express" executable in the current directory.
Use the "PUSHD" command or "CD /D" instead of "CD"
#Echo OFF
PUSHD "D:\myproject\express" || (Echo bad folder)
express.exe "site"
Pause&Exit
Express is loaded someplace else and not in the windows path environment variable. You need to find were express.exe is installed and add the path. Maybe something like ;"C:\Program Files\Express\bin";
Running "npm install express" and "npm install express-generator" from your project directory will resolve the issue (if that helps).
But, this doesn't solve the problem of being global.
You might check the permissions to the folder if you are getting this when creating your project
Express Project
change script section in package.json file like this
"scripts": {
"start": "node app.js"
}
I too faced the similar problem and at last I tried using node.js command prompt instead of windows command prompt and it worked. So, try from node.js command prompt.
Tried all of these but didn't work for me. Also, I tried from different sources but never worked for me.
In the end, found that I need to run the command forcefully. It worked for me.
Make sure you run the command with Run as Administrator.
npm install -g --force express-generator
It will overwrite the existing express files.
Use npm start .. then the app.js runs .. which can be listened on the usual port 3000