Related
When creating a new Angular 5 project:
node version: 8.9.2
npm version: 5.5.1
My Command is:
npm install -g #angular/cli
The Error is:
npm ERR! **Unexpected end of JSON input while parsing near '...nt-webpack-plugin":"0'**
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Aashitec\AppData\Roaming\npm-cache\_logs\2017-12-06T13_10_10_729Z-debug.log
The error log is here
This solved it for me:
Open Windows Powershell as admin
npm cache clean --force
npm install -g #angular/cli
https://devblogs.microsoft.com/premier-developer/getting-started-with-node-js-angular-and-visual-studio-code/
Solution:
npm cache clean --force
then try again to create your app (here when creating a react app) or install what you were about to install.
create-react-app myproject
(creating react app)[same npm problem that can occur in different operation]
npm install -g #angular/cli#latest
(installing angular cli (or installing anything else))
It will work.
explanation:
That's a problem related to npm, it's about the cache that get corrupt. Even though in newer versions of npm they implemented self healing, which normally guarantee no corruption, but it seem it's not that efficient.
Forcing clean cache resolve the problem.
The error happen when parsing one of the cache files, which have a json format. The cache is found at ~/.npm/_cacache (in linux) and %AppData%/npm-cache (windows). For my current npm version and when i checked, there was three directories.
if you check the first or the second, the structure is as follow
And each cache file have a json format (and that what get parsed)
Here a good link from the doc: https://docs.npmjs.com/cli/cache
[Update] Also if it happen that this didn't solve it, you may check this answer here https://stackoverflow.com/a/50191315/7668448 it show how you can change the npm registry, that can be helpful. Check and see.
If
npm cache clean --force
doesn't work.
try
npm cache clean --force
npm update
Npm uses Cache for downloading new packages for you.
You need to clear your npm cache.
use following command to clean :
npm cache clean --force
then normally use your npm install command
e.g.
npm install -g #angular/cli
I solve that with
npm cache clean --force
then update npm
npm i npm#latest -g
then normally use your npm install command
npm install
delete npm and npm-cache folders in C:\Users\admin\AppData\Roaming\ (windows)
then execute cmd
npm cache clear --force
npm cache verify
update npm to latest version
npm i -g npm
then create your project
1)Angular
npm i -g #angular/cli#latest
ng new HelloWorld
2)React
npm i -g create-react-app
create-react-app react-app
None of the 30 answers here worked for me. I needed to:
delete node_modules and package-lock.json
npm cache clean --force
npm install -g #angular/cli
npm i --package-lock-only
npm ci
Phew!
this solved it npm cache clean --force
Simple solutions:
npm cache clean --force
npm install
This command alone solved my problem:
npm cache clean --force
Also you should make sure you are using the correct version of node.
Using nvm to manage the node version:
nvm list; # check your local versions;
nvm install 10.10.0; # install a new remote version;
nvm alias default 10.10.0; # set the 10.10.0 as the default node version, but you have to restart the terminal to make it take effect;
I use Windows and removed all the files that were listed below and my problem was solved
C:\Users{{your-username}}\AppData\Roaming\npm-cache
npm cache clean --force worked for me
Error Resolved :
$ npm install -g gulp
npm WARN deprecated gulp-util#3.0.8: gulp-util is deprecated - replace it, following the guidelines at https://medium.com/gulpjs/gulp-util-ca3b1f9f9ac5
npm ERR! Unexpected end of JSON input while parsing near '.../RGs88STtAtiMP3tCiNdU'
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\admin\AppData\Roaming\npm-cache_logs\2018-11-20T07_38_56_733Z-debug.log
Solution
npm cache clean --force
For Windows : go to C:\Users\username\AppData\Roaming\npm-cache
Delete all files and run
npm install && npm start
I solved that by first cleaning the cache using
npm cache clean --force
Then
npm install -g #angular/cli
My case - Windows 7 (had nothing better at the needed moment).
Helped me the following:
Deleting everything from C:\Users\username\AppData\Roaming\npm-cache
AND
Deleting package-lock.json
I resolved my problem with this one liner
npm cache clean --force
Note: since its a clean install, I had no concerns emptying npm cache.
ERROR: npm ERR! Unexpected end of JSON input while parsing near '...ore-js":"3.0.0-beta.1
This occurs when installing the expo CLI globally, This works for me!
npm cache clean --force
I got error (file already exists --force to overwrite) after running the following code:
npm cache clean --force
npm install -g #angular/cli
I solved it using :
npm i -g --force npm
Make sure to run the first commands to flush the cache of npm.
It's error from your npm....
So unistall node and install it again.
It works....
PS: After installing node again, install angular cli globally.
npm install -g #angular/cli#latest
I solve that with
First delete package-lock.json
npm cache clean --force
then update npm
npm i npm#latest -g
then use npm install command
npm install
If you looking for npm install and getting same kind of error
Delete package-lock.json and npm cache clean --force and try
In my case I changed the network to a much stronger one and npm install worked perfectly:
npm cache clean --force
If npm cache clean --force doesn't resolve the issue, try deleting the ~/.npm directory (*nix/macOS). This is the directory where node stores its cache, locks, logs, global packages (unless you're using nvm), and modules installed via npx.
First, backup your current ~/.npm directory:
mv ~/.npm ~/.npm-backup
Now try running your npm command again. This will create a new ~/.npm directory. If the issue is resolved, you can safely remove you backup. Before doing so, you may want to review the global packages installed in your ~/.npm-backup directory so you can reinstall them using npm i -g [package].
rm -rf ~/.npm-backup
If the issue is not resolved, you can restore your backup:
rm -rf ~/.npm
mv ~/.npm-backup ~/.npm
Careful with those rm commands, folks!
Instead of clearing the cache you can set a temporary folder:
npm install --cache /tmp/empty-cache
or
npm install --global --cache /tmp/empty-cache
As of npm#5, the npm cache self-heals from corruption issues and data extracted from the cache is guaranteed to be valid. If you want to make sure everything is consistent, use npm cache verify instead. On the other hand, if you're debugging an issue with the installer, you can use npm install --cache /tmp/empty-cache to use a temporary cache instead of nuking the actual one.
For me I had to clone my branch again and do npm install
You can use yarn package manager instead of npm.
It solved this problem for me
I've faced this issue and I tried all the answers on Stackoverflow but not worked for me, finally I found solution for this issue:
First of all you have to uninstall nodejs and remove all the files related him
Go to "Register Editor" and search for all "nodejs", "node.js" and delete them
Restart your computer
And reinstall nodejs then install angular.
It's worked for me
These commands worked for me
sudo npm cache clean --force
sudo npm cache verify
sudo npm i npm#latest -g
Try setting
npm config set strict-ssl false
and then try running,
npm install -g #angular/cli
This happens something due to cache or outdated version of Node Package Manager
i just updated my NPM it works fine
here is command to update Npm to latest version
npm i npm#latest -g
after updating NPM run your desired command
When creating a new Angular 5 project:
node version: 8.9.2
npm version: 5.5.1
My Command is:
npm install -g #angular/cli
The Error is:
npm ERR! **Unexpected end of JSON input while parsing near '...nt-webpack-plugin":"0'**
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Aashitec\AppData\Roaming\npm-cache\_logs\2017-12-06T13_10_10_729Z-debug.log
The error log is here
This solved it for me:
Open Windows Powershell as admin
npm cache clean --force
npm install -g #angular/cli
https://devblogs.microsoft.com/premier-developer/getting-started-with-node-js-angular-and-visual-studio-code/
Solution:
npm cache clean --force
then try again to create your app (here when creating a react app) or install what you were about to install.
create-react-app myproject
(creating react app)[same npm problem that can occur in different operation]
npm install -g #angular/cli#latest
(installing angular cli (or installing anything else))
It will work.
explanation:
That's a problem related to npm, it's about the cache that get corrupt. Even though in newer versions of npm they implemented self healing, which normally guarantee no corruption, but it seem it's not that efficient.
Forcing clean cache resolve the problem.
The error happen when parsing one of the cache files, which have a json format. The cache is found at ~/.npm/_cacache (in linux) and %AppData%/npm-cache (windows). For my current npm version and when i checked, there was three directories.
if you check the first or the second, the structure is as follow
And each cache file have a json format (and that what get parsed)
Here a good link from the doc: https://docs.npmjs.com/cli/cache
[Update] Also if it happen that this didn't solve it, you may check this answer here https://stackoverflow.com/a/50191315/7668448 it show how you can change the npm registry, that can be helpful. Check and see.
If
npm cache clean --force
doesn't work.
try
npm cache clean --force
npm update
Npm uses Cache for downloading new packages for you.
You need to clear your npm cache.
use following command to clean :
npm cache clean --force
then normally use your npm install command
e.g.
npm install -g #angular/cli
I solve that with
npm cache clean --force
then update npm
npm i npm#latest -g
then normally use your npm install command
npm install
delete npm and npm-cache folders in C:\Users\admin\AppData\Roaming\ (windows)
then execute cmd
npm cache clear --force
npm cache verify
update npm to latest version
npm i -g npm
then create your project
1)Angular
npm i -g #angular/cli#latest
ng new HelloWorld
2)React
npm i -g create-react-app
create-react-app react-app
None of the 30 answers here worked for me. I needed to:
delete node_modules and package-lock.json
npm cache clean --force
npm install -g #angular/cli
npm i --package-lock-only
npm ci
Phew!
this solved it npm cache clean --force
Simple solutions:
npm cache clean --force
npm install
This command alone solved my problem:
npm cache clean --force
Also you should make sure you are using the correct version of node.
Using nvm to manage the node version:
nvm list; # check your local versions;
nvm install 10.10.0; # install a new remote version;
nvm alias default 10.10.0; # set the 10.10.0 as the default node version, but you have to restart the terminal to make it take effect;
I use Windows and removed all the files that were listed below and my problem was solved
C:\Users{{your-username}}\AppData\Roaming\npm-cache
npm cache clean --force worked for me
Error Resolved :
$ npm install -g gulp
npm WARN deprecated gulp-util#3.0.8: gulp-util is deprecated - replace it, following the guidelines at https://medium.com/gulpjs/gulp-util-ca3b1f9f9ac5
npm ERR! Unexpected end of JSON input while parsing near '.../RGs88STtAtiMP3tCiNdU'
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\admin\AppData\Roaming\npm-cache_logs\2018-11-20T07_38_56_733Z-debug.log
Solution
npm cache clean --force
For Windows : go to C:\Users\username\AppData\Roaming\npm-cache
Delete all files and run
npm install && npm start
I solved that by first cleaning the cache using
npm cache clean --force
Then
npm install -g #angular/cli
My case - Windows 7 (had nothing better at the needed moment).
Helped me the following:
Deleting everything from C:\Users\username\AppData\Roaming\npm-cache
AND
Deleting package-lock.json
I resolved my problem with this one liner
npm cache clean --force
Note: since its a clean install, I had no concerns emptying npm cache.
ERROR: npm ERR! Unexpected end of JSON input while parsing near '...ore-js":"3.0.0-beta.1
This occurs when installing the expo CLI globally, This works for me!
npm cache clean --force
I got error (file already exists --force to overwrite) after running the following code:
npm cache clean --force
npm install -g #angular/cli
I solved it using :
npm i -g --force npm
Make sure to run the first commands to flush the cache of npm.
It's error from your npm....
So unistall node and install it again.
It works....
PS: After installing node again, install angular cli globally.
npm install -g #angular/cli#latest
I solve that with
First delete package-lock.json
npm cache clean --force
then update npm
npm i npm#latest -g
then use npm install command
npm install
If you looking for npm install and getting same kind of error
Delete package-lock.json and npm cache clean --force and try
In my case I changed the network to a much stronger one and npm install worked perfectly:
npm cache clean --force
If npm cache clean --force doesn't resolve the issue, try deleting the ~/.npm directory (*nix/macOS). This is the directory where node stores its cache, locks, logs, global packages (unless you're using nvm), and modules installed via npx.
First, backup your current ~/.npm directory:
mv ~/.npm ~/.npm-backup
Now try running your npm command again. This will create a new ~/.npm directory. If the issue is resolved, you can safely remove you backup. Before doing so, you may want to review the global packages installed in your ~/.npm-backup directory so you can reinstall them using npm i -g [package].
rm -rf ~/.npm-backup
If the issue is not resolved, you can restore your backup:
rm -rf ~/.npm
mv ~/.npm-backup ~/.npm
Careful with those rm commands, folks!
Instead of clearing the cache you can set a temporary folder:
npm install --cache /tmp/empty-cache
or
npm install --global --cache /tmp/empty-cache
As of npm#5, the npm cache self-heals from corruption issues and data extracted from the cache is guaranteed to be valid. If you want to make sure everything is consistent, use npm cache verify instead. On the other hand, if you're debugging an issue with the installer, you can use npm install --cache /tmp/empty-cache to use a temporary cache instead of nuking the actual one.
For me I had to clone my branch again and do npm install
You can use yarn package manager instead of npm.
It solved this problem for me
I've faced this issue and I tried all the answers on Stackoverflow but not worked for me, finally I found solution for this issue:
First of all you have to uninstall nodejs and remove all the files related him
Go to "Register Editor" and search for all "nodejs", "node.js" and delete them
Restart your computer
And reinstall nodejs then install angular.
It's worked for me
These commands worked for me
sudo npm cache clean --force
sudo npm cache verify
sudo npm i npm#latest -g
Try setting
npm config set strict-ssl false
and then try running,
npm install -g #angular/cli
This happens something due to cache or outdated version of Node Package Manager
i just updated my NPM it works fine
here is command to update Npm to latest version
npm i npm#latest -g
after updating NPM run your desired command
Can NPM suggest to install additional and optional packages after npm install command? Something along the lines of how it is done in Composer?
There is a optionalDependencies entry, but its description looks like a propose of this option is slightly different.
cd somedir
npm install .
or
npm install path/to/somedir
somedir must contain the package.json inside it.
It knows about git too:
npm install git://github.com/visionmedia/express.git
https://stackoverflow.com/a/10388874/8814115
Here are the steps I did to set up my project:
$ git clone ssh:<project>
$ cd <project>
$ nvm install 5.0
$ nvm use 5.0
I then check my node version and it appears to be correct: v5.0.0.
$ npm install
$ npm install -g react-native-cli
This all seems to go according to plan, and locally, it gives me a tree with all the correct dependencies.
When I do npm list --depth=0 -g, I get expected results.
├── npm#3.3.6
└── react-native-cli#1.0.0
So I try to run the npm start script, which is react-native start. However, whenever I try to run it, I get the following basic error:
Looks like you installed react-native globally, maybe you meant react-native-cli?
To fix the issue, run:
npm uninstall -g react-native
npm install -g react-native-cli
I've tried just about everything I can think of, down to uninstalling node and nvm completely and starting from scratch.
What is the solution to this problem?
This upcoming error message is not very helpful. Besides your npm installation issue I found also an npm start doesn't work after upgrade to 0.15.0 bugfixing issue with the same error message.
First of all you should check the symbolic link shown after npm install:
$ npm install -g react-native-cli
/usr/local/bin/react-native -> /usr/local/lib/node_modules/react-native-cli/index.js
Check if the linked file exists:
ls /usr/local/lib/node_modules/react-native-cli/index.js
If not, check your npm path settings with
npm config list
or directly in ~/.npmrc
In my case I had a wrong prefix in ~/.npmrc, which I've deleted completely. As the npm ERR! message shows after another npm install -g react-native-cli, it came up with:
npm ERR! Refusing to delete /usr/local/bin/react-native: ../lib/node_modules/react-native/local-cli/wrong-react-native.js symlink target is not controlled by npm /usr/local
npm ERR! File exists: /usr/local/bin/react-native
npm ERR! Move it away, and try again.
Look at the indicated 'wrong-react-native.js' filename at the end.
Delete that link, do a npm update and try npm install -g react-native-cli again.
Worked on MacOS X. npm installed with homebrew
npm update seems to just update the packages in dependencies, but what about devDependencies.
Right now you can install devDependencies by running npm install ., but this doesn't work for npm update .
Any ideas?
To update package.json in addition to the local modules, run
npm update --save-dev
Alternatively, the same command to save time
npm update -D
You can view the full detail of update, or any command for that matter through
npm help <cmd>
Install npm-check-updates (https://www.npmjs.org/package/npm-check-updates), then jump into your project folder and run:
npm-check-updates
And to update and save changes to your package.json file:
npm-check-updates -u
These steps worked for me :
npm install -g npm-check-updates
ncu -u
npm update
npm install
npm outdated - for an overview what's outdated
npm install -g npm-check-updates - as pointed correctly by Michael
ncu -u - it'll automatically update all dependencies (also dependencies, i.e., it's of course different than devDependencies) versions in package.json, without reinstalling it yet. It'll just change the "numbers" in package.json
npm update - actual dependencies installation
(Optional, depending by scenario) you might need to use the flag --force, or (new in NPM v7) --legacy-peer-deps to complete the process. You can read about difference between those 2 on What does npm install --legacy-peer-deps do exactly? When is it recommended / What's a potential use case?
(Optional) you can validate it using ncu -u and for correctly updated dependencies you should see the text All dependencies match the latest package versions :)
This problem does no longer excise with the current version of NPM (1.3.11).
Update works fine with: npm update
If you are using outdated npm version it might be the problem. So before any other commands execute:
sudo npm install npm -g
or (if above doesn't work):
sudo npm update npm -g
Then relaunch the console (in order for changes to take effect).
Now you can check your new npm --version and if it is up to date execute:
npm update
or (if you prefer):
npm update --save-dev
I ran into the same problem as OP had, and found no solution, so I decided to write a Grunt plugin that will auto-update my devDependencies..
It's on Github, I'd love to get some input and collaborations in order to make it the best tool that NPM hasn't provided.
Basically it will auto-update your outdated development dependencies with a simple Grunt Task.
https://github.com/pgilad/grunt-dev-update
What worked for me is installing individual dev dependencies like this
npm install react-test-renderer#15.6.1 --save --only=dev
i found the answer onhttps://nodejs.dev/learn/update-all-the-nodejs-dependencies-to-their-latest-version and this is working for me for all the major release as well
npm install -g npm-check-updates
ncu -u
npm update
to check the outdated package use
npm outdated
One (slow) way to do force the update, is to remove the node_modules directory, and then do npm install again.
This was a known bug of the npm update command, which has been fixed on the development branch of npm, see here:
https://github.com/isaacs/npm/pull/3863
It should land on the latest stable version of npm pretty soon.