I'm trying to test Gulp and I find this problem.
I installed Gulp globally with: sudo npm install -g gulp.
Then I was created the folder: mkdir my-gulp
cd my-gulp
And the I try to do this: sudo npm install --save-dev gulp
It seems work fine, no errors, but my folder my-gulp continues empty.
I can see in console, this line:
gulp#3.8.6 ../../node_modules/gulp
And I thinkig the problem is here "../../", I think it must be "gulp#3.8.6 node_modules/gulp"
What do you think? Maybe is something about $PATH?
First, you should never run npm via sudo for local packages. (In fact, you shouldn't run it as root ever, but that's a different, more complex issue to solve.)
Second, you need to initialize NPM before you can install packages. It sounds like you didn't do this.
There's two ways:
If you have an existing package.json, which contains the required information about a project, you can copy it into your folder, then edit in a text editor of your choice to get started. If the package.json includes existing dependencies, you can either remove them, or run npm i in the folder to install them.
If you are starting fresh, run npm init to set up a new package.
Once you have a valid package.json, you can install packages into your application.
As to why you are seeing ../../gulp, I'm guessing you have a package.json further up the file tree somewhere.
Related
Created new folder and did npm install serve in it.
It created package-lock.json and node_modules/ folder.
When I run in the same folder serve it shows error:
command not found: serve
What is the way to install?
I am using: npm#6.5.0
My dev environment is MACOS
I read a great many pages on this topic and nothing worked until I tried the following
./node_modules/.bin/serve -s build
Also if you are using VS CODE you may want to bring up the terminal window outside of VS CODE - this seems to have snared a lot of people.
First of all, you should start your project running
npm init
This will create the package.json file.
Then, you can install the serve package globally.
npm install -g serve
And now you can run serve.
The serve binary was not found because the operating system cannot locate it in the PATH environment variable.
When you do the npm install serve command. The serve module is only installed into the node_modules directory found under the the project folder. Unless you explicitly include the absolute path of this node_module directory as part of your PATH env var, the OS won't know where to find serve.
Like others say, the typical practise would be to install the module using the -g flag. G means global.
When -g is used, npm will put the binary in its node directory somewhere and this this directory would have been included as part of your PATH when you install node, thus making the any new binary discoverable.
If the node.js module has a "command" and you want to run it without installing the module globally(npm install -g serve). You can run it like ./node-modules/.bin/command from the root folder of the project.
Now, what is generally used is npx, so that you can from within a project easily run any of the binaries within its local node_modules or your system's global node_modules/ and any other commands on the $PATH.
For example, here we install webpack as a local dependency. You can image doing this in a folder after running npm init. Then we run webpack without having to worry about referencing the bin file:
$ npm i -D webpack
$ npx webpack
I have installed Node on a Windows 10 machine. Then did npm install spectacle from the node command prompt. Finally downloaded the spectacle-code-slide zip file. Moved into the folder, did npm install and npm start. I get the following:
npm ERR: missing script: start.
Obviously, I am missing something. What is it? Note: I am a complete noob!
Edit: I tried the process outlined here without success.
This error means that you don't have start script in your package.json. Read about scripts here.
When you run npm instal spectacle you install spectacle as a package into node_modules folder. So you don't have any scripts in your package.json except those you add there yourself.
I've actually never used spectacle, but I suppose you better use their spectacle-boilerplate (instead of doing npm instal spectacle). You need to clone (via git) or download that repository locally. And then you will have their package.json with start script in it.
I'm currently trying to execute the command npm install to get all dependencies and modules necessary to run my package.json.
The problem is that I don't have Internet access to fetch from the internet, so I have downloaded the node_modules on a different PC and copy-paste it on my local folder that contains all. If I tried to run npm install without arguments, it's still trying to fetch from internet and fails.
I have read their documentation and apparently they have listed few npm install that takes different arguments, but still, I'm unable to install from the folder already downloaded.
I've tried to do npm install node_modules on the path that contains the package.json, but nothing. I'm running on windows 7.
If someone has an approach to specifying the local node_modules and just install all modules inside, I'll appreciate.
Thanks!
You probably should use npm-link...
From the docs:
Go to the node_modules directory, and, inside each package, run npm-link:
$ cd node_modules
$ cd package-name
$ npm link
$ cd ..
...
In the directory of your project which needs the local modules:
$ npm link package-name
Newbie question. I have chosen not to install express with -g option. I did not use npm -g which would put it on the path globally. Instead it is installed in my local mac user directory. What I am not clear on is exactly what or how you put a package like express on the path so it can be invoked etc? What exactly needs to be on the path (node_modules?) so these packages are available just like a -g installation? I could have used home-brew I suppose but anyway, I now have all node packages and everything local. Another situation is that I am not able to run any of the nodejs tutorials. Although there might be smarter ways to do this, I wonder if sudo is really such a good way to install a development package ....
Now for example, I want to run the tutorial javascripting which is a nodejs tutorial. How do I do this. If I just type:
Mac1$ javascripting
it finds nothing.
Same for
Mac1$ express
UPDATE: THIS WAS ANSWERED IN THE COMMENTS
The commands exist in a hidden directory after a regular
install npm install express
in my case this the command goes here: /users/MAC1/node_modules/.bin
It is this path that needs to be placed on the $PATH as described in the first comment.
Thanks guys.
npm installes executable to two places. By default running a npm install in a project will install any binaries in ./node_modules/.bin. When you use the -g flag (npm install -g package-name) it will install into a global path. You can find out the global path by running npm bin -g. Add that to your path and globally installed executables will be accessible.
You can also add ./node_modules/.bin to your path to allow easy access to executables added by packages in your project folder. I admit to using this on a trusted local machine. However, this is very dangerous and not a recommended way to expose the executables in the node_modules directory.
Best alternative is to add the executable to the scripts section of the package.json file and then use npm run-script <command> which will auto prepend the ./node_modules/.bin when executing.
package.json
{
"scripts": {
"foo": "foo --arguments"
}
}
Example
$ npm install foo
$ ls ./node_modules/.bin
foo
$ npm run-script foo
# Executes:
./node_modules/.bin/foo --arguments
I have a small Node module that includes a command line script in the bin directory.
"bin": {
"generate": "./bin/generate.js"
}
The generate.js script is properly executable.
This all works fine if I run npm install -g. But I'd prefer not to globally install and only have the command generate work from inside the module folder. If I run npm install from the module folder, it does correctly install all of the dependencies in a node_modules subdirectory. But then generate from the command like gives me "No such file or directory."
Thx.
I never install node modules using -g. My solution for your problem is to add this to my $PATH
# add this to ~/.bashrc, ~/.zshrc, or ~/.profile, etc
export PATH="./node_modules/.bin:$PATH"
Now, so long as your in the root of your module, you can access any binaries that have been installed as modules.
As an example, less is commonly installed with
npm install -g less
However, if you have your PATH modified as described above, you could something like this
cd my_node_module
npm install --save less
lessc less/style.less css/style.css
Without the PATH modification, you would've seen
command not found: lessc
If you don't feel like altering your PATH, you can access the binary directly
cd my_node_module
npm install --save lessc
./node_modules/.bin/lessc a.less a.css
Yay, no more npm install -g ...