I recently npm installed a package into my Ruby on Rails application. The installation changed my yarn.lock file. Specifically, the "resolved" field for all my resources have changed from yarnpkg.com to npmjs.org.
From this:
d3-dsv#1:
version "..."
resolved "https://registry.yarnpkg.com/d3-dsv/-/d3-dsv-1.0.8.tgz#..."
integrity ...
To this:
"d3-dsv#1":
"integrity" "..."
"resolved" "https://registry.npmjs.org/d3-dsv/-/d3-dsv-1.1.1.tgz"
"version" "..."
Is there a problem with these changes in this yark.lock file? Should I have done some yarn alternate to npm installing?
You can fix this issue by re-running yarn again.
To accomplish this, follow the steps below.
Remove the registry.npmjs.org section in your yarn.lock file.
Run the yarn command again.
$ yarn
This should rewrite the yarn.lock to change the registry from npm to Yarn.
The steps above should rewrite the yarn.lock file, and change the registry and text from npm to Yarn.
If you are using only public packages in your application then this will not cause many problems. You can go about your business as it is.Although there might be some complications when you authenticate for any of them at any point.
If you are using any private repositories, you have to re-register your packages with yarn and add credentials to them.
The following steps will help you.
Setup a private repo on npmjs.org and add a scope and your package (Lets name it boo)
Create a new project locally and upload it to the npm registry (let's call it blimp)
So when they are updated it will be #boo/blimp
Add the package to your new applications package.json by installing yarn add #boo/blimp
Remove the node_modules (rm -rf node_modules)
Try yarn install if there is an error in the lock file try re-creating one as follows
sed -ie 's,registry.yarnpkg.com/#boo,registry.npmjs.org/#boo,' yarn.lock
7. If that omits an issue like Request failed or something in that alley, try following
yarn config set registry https://registry.npmjs.org
At this point, you have tried lots of options. If this is still an issue in your system then you might have to move to `npm` package management. Follow the [yarn][2] repository for more updates.
Similar issues
yarn.lock should not include base registry
Support protocol-relative registry
Support for registry URLs without trailing slash
I suspect this happened to me because I installed something with npm install instead of yarn. I recognized my mistake, npm uninstalled the package, then yarn added the package, but then every entry in yarn.lock was changed to use npmjs.org instead of yarnpkg.com.
I did not commit the changes to source control, and the problem disappeared after I...
Deleted package-lock.json
Reverted the change to package.json in source control (i.e. removed the new package)
Reverted all changes to yarn.lock in source control
yarn added the package again
I am unsure if using npm install followed by yarn add is really what triggered the problem. Can anyone confirm?
Context
I have a .NET project and we use some npm packages for the UI. I use a pre-built check if the folder node_modules does not exist, run the command npm install.
When committing an update to package.json, npm install will not trigger for other people who are updating the repository. Because node_modules exists on their machine which leads to errors like Can't resolve....
Question(s)
Is the folder check obsolete? Is npm install smart enough to download only the necessary things and not all the dependencies? Or do i need a hash check on package.json?
There's no harm in running npm install multiple times as it will simply not do any operation in case there's nothing to do.
You don't need to check for the node_modules folder. npm will download and update any dependencies that are missing.
It's also important to run npm install since other machines may be running different systems and the dependencies may need to be compiled differently.
You can hash check package.json and/or package-lock.json for caching purposes, but it's not really necessary.
I deleted some module folders that I had previously npm installed into a module. I also manually removed their entries in my module's package.json. Then, npm would still look for those deleted folders so I re-created the folders and npm uninstalled them, which succeeded. Is there another way to "clear" npm's graph?
Try running npm cache clean --force and then see if the problem still persists. S If would help if you posted your package.json file so that we could see if any problems exist.
I'm a newbie so please include links to URLs or explain terminologies so I can understand.
I've managed to install 'npm' on a Mac OS (10.13.3) via the terminal, and have installed some packages like SASS using it.
I'm now trying to install sass-mq using npm. I think I've managed to install it, but I'd like a second opinion on what I might have done that was incomplete, or wrong while doing it.
Initially, following the instructions on the sass-mq Github page, I was trying to use:
npm install sass-mq --save
which gave me this error:
npm WARN saveError ENOENT: no such file or directory, open '/Users/<username>/package.json'
npm WARN enoent ENOENT: no such file or directory, open '/Users/<username>/package.json'
npm WARN <username> No description
npm WARN <username> No repository field.
npm WARN <username> No README data
npm WARN <username> No license field.
+ sass-mq#5.0.0
updated 1 package and audited 1 package in 1.67s
found 0 vulnerabilities
Looking around, I realised I'm meant to be using
npm init
..before typing my 'install sass-mq --save' command.
Cool, done that. Next error was this:
package name: (nikhil) sass-mq
version: (1.0.0)
description:
entry point: (index.js)
test command:
git repository:
keywords:
author:
license: (ISC)
About to write to /Users/nikhil/package.json:
{
"name": "sass-mq",
"version": "1.0.0",
"description": "",
"main": "index.js",
"dependencies": {
"sass-mq": "^5.0.0"
},
"devDependencies": {},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}
Is this OK? (yes)
darwin:~ nikhil$ npm install sass-mq --save
npm ERR! code ENOSELF
npm ERR! Refusing to install package with name "sass-mq" under a package
**npm ERR! also called "sass-mq". Did you name your project the same
npm ERR! as the dependency you're installing?**
I think this is saying that I can't use 'sass-mq' (which is the name of the package, as the name of the local package (?) I'm installing into on my local machine. Some more info here.
So I simply tried this:
**package name: (sass-mq) media-queries-nikhil**
version: (1.0.0)
description:
git repository:
keywords:
author:
license: (ISC)
About to write to /Users/nikhil/package.json:
and it seems to have worked OK.
My question is: Is this the right way I should have done this? How do you usually do this?
Also, I get these warnings - is it OK to ignore them?
npm WARN media-queries-nikhil#1.0.0 No description
npm WARN media-queries-nikhil#1.0.0 No repository field.
I'm creating this question in part so others like me looking for the answer to a similar issue can find an explanation, instead of just commands they need to fix their issue. I found a few similar question-threads, but none that actually explained what was happening and why.
Thanks for reading, I really appreciate any help with this :)
TL;DR: The way you have done it is fine, and you needn't worry about those warnings.
For a more in-depth idea of why npm exists and how it works, read on.
npm stands for Node Package Manager. Packages are a fundamental part of the node ecosystem - they exist to allow you to use other people's solutions to common problems.
However, this can get very confusing, since, because this is an open source community, they are all being released at different times by different people. Also, two different packages that you use may actually be dependent on a third package that is completely unknown to you, and potentially they may even need different versions of that package.
As you can already see, this has the potential to get very messy.
npm helps you deal with these 'dependencies' in a way that is easier to manage and think about, however it is not essential to use npm - you can write a node app where you organise all these different files yourself. That's going to get very confusing, very quickly, however, so there's no real advantage in at least 99% of cases. There are also other package managers - personally I use yarn but they're all trying to do similar things, so that choice is mainly a matter of preference and outside the scope of this discussion.
So when you start a new project, you type npm init and this tells npm to make a file in your folder called package.json that is going to help you organise these dependencies. package.json will hold the information about your own app (which is a package in its own right) and also which packages you have told npm you are going to be using as dependencies in your own project. This is why it asks you all those questions about your package name and description, so that if you ever publish it, people will know who to contact, what it does, what version it is, etc.
It is only important to give this serious thought if you actually intend to publish your package, which is less likely in the case of a website, but very likely if you're making a library. However, as you've already discovered, packages are meant to have unique names, which is why you should call your package something personal to you, so you don't end up with a naming conflict like you did when you tried to name your package the same as a package you were later going to try to install.
So let's create our own package, and install our first dependency (which, remember, is just another package). I'm going to choose time-stamp as a dependency because it's nice and small.
First you will make your project directory. This is just an empty new directory. Let's call it ts. From inside the ts directory, type npm init into your terminal and answer its questions (although I usually just press return to them all,) then look inside the directory and you will see the package.json file. Open the file, and you will see all your package information. And currently that's it.
So now back to the command line and type npm install time-stamp. When it's finished thinking, open package.json again and you will see time-stamp referenced in the list of 'dependencies.' (As of npm 5 it is no longer necessary to use the --save option. npm now assumes this as default. What is the --save option for npm install?)
Back inside the directory, you will also see another file called package-lock.json and a directory called node_modules.
The node_modules directory will contain a directory called time-stamp and that holds all the code that makes time-stamp work. You probably don't need to look in here very often, but you can, and if you look inside the time-stamp directory you will see it has got its own package.json! Open it up and have a look, and there's all the information it needs to install itself. You'll note that it doesn't have any dependencies, but if it did, they would be installed in your node_modules with all of their dependencies as well... and their dependencies... and theirs... If you want to see this in action, try installing the testing framework 'jest. Again, just npm install jest.
Hopefully the whole thing's beginning to make a bit of sense, now...
The lock file is slightly more complicated. What it does is make sure that when you deploy your project onto a new system that you use exactly the same set of dependencies. It needs to do this because the way npm organises things can be dependent on latest release versions, etc, and it would be very annoying if you were to try to deploy your app and it didn't work because your dependencies were behaving in a different way from your development environment!
Having said all this, basically you can ignore it at this stage! It's an important part of npm, but you shouldn't edit it directly unless you really know what you're doing.
Once you have installed your dependency, you will be able to require or import it anywhere in your project, without having to worry about directing it to the correct path in your directory structure. Just require('time-stamp') and it will work just fine!
Finally, and well done for getting this far, it's worth mentioning global installation. Using the -g option - that is npm install time-stamp -g - means that the dependency will be installed in a central node_modules directory somewhere on your computer rather than in your project's node_modules folder. However, you will still need to link it to your project (so that it ends up as a dependency in your package.json) and you would do that by typing npm link time-stamp. Personally I like all my modules to be local to my project, but again this depends on your use-cases and to an extent personal preference.
What this all means is that the combination of your package.json and the lock file is a perfect representation of all the files in your node_modules, and this means that you don't need to have them in your git (or other repository.) You can pull your repository down to a new server, and all you have to do is type npm install and they'll be dragged down from the internet there and then. This becomes much more important when you have a large project, because of all the files involved in your dependencies, but it's a good habit to add 'node_modules' to your .gitignore from day one. But I'm starting to get off topic so maybe I should end here...
This is only intended to be a basic introduction, so I have kept it fairly simple, and I don't want to create an in-depth tutorial, but if you need clarification on any of the points I've made, feel free to comment and I'll make edits if I can!
npm WARN saveError ENOENT: no such file or directory, open '/Users/{username}/package.json'
You don't have a package.json > use npm init
You are in the wrong directory > cd to the folder where your package.json is, like so:
cd C://Dev/MySolution/MyWebProject
and then try again.
npm WARN media-queries-nikhil#1.0.0 No description
npm WARN media-queries-nikhil#1.0.0 No repository field.
Abulifa's answer explains that your project could be published as it's own npm package... In that scenario, these warnings would help warn that your package.json is missing some fields.
If you know you'll never publish as an npm package, and want to hide these warnings, add this to your package.json:
"description": "filling out this field to avoid warnings",
"repository": "not publishing",
"readme": "not publishing",
"license": "not publishing",
Run the following:
npm init -y
That will create the package.json file which you can edit later with proper information.
Reference: https://www.digitalocean.com/community/questions/npm-warn-saveerror-enoent-package-json-not-found
Issue:
npm install fails with below error
npm WARN saveError ENOENT: no such file or directory, open '.../package.json'' error
Cause
npm install will need package.json in the current directory you are in, which is missing.
Solution
Assume there are 2 directories:
C:\dir1_p\ <--------- package.json exists
C:\dir2\ <--------- package.json does not exist
cd C:\dir1_p\
npm intall <---------- PASS, since package.json is present
cd C:\dir2\
npm intall <---------- ERROR, since package.json is Not present (this was my problem)
So, are you in the correct directory when you did npm install?
Case 1: if you are in wrong directory, cd to a directory where package.json exists, then run npm install
Case 2: if you are in correct directory and you want to create a new package.json, then run npm init and press ENTER keys until it is completed, this will create package.json in current directory, now run npm install
Hope this helps someone.
The same issue occurred for me when running:
npm install -g #vue/cli
After much research and experimentation the only thing that worked instead was:
npm install -g #vue/cli#latest
You can't name your project equal the package name that you are trying to install.
Rename your project at the package json and try again or try npm init again and use another name.
One of the major problem could be that you are not at the root file were you should run npm install, make sure you are either at the client folder or the server side and not in some random files or the parent file that doesnt have package.json in them
close the project and reopen it, this will fix the issue
When I try to do a local install (eg. npm install socket.io), it's putting the module in the ~/src/node_modules/ folder. npm root reports this folder as well. I must have screwed up npm's settings during some bleary eyed late night session, but I can't figure out how to get it set back to ./node_modules as the default. Anyone know what I screwed up, and how to set it back to the default?
Update
I have tried npm config set root ./node_modules but npm root still reports ~/src/node_modules as the root. I also checked .bash_profile and no node related settings are being made in it.
A quick npm uninstall npm -g and then another install from the npm website should get your defaults back.
Normally reinstalling is a pain but with your package.json files you can get everything set back up with a quick npm link