I am not able to use truffle or npm commands on powershell even though I have it installed, powershell hangs when I use npm init while truffle is not recognized by powershell at all. I have uninstalled and reinstalled truffle many times but to no avail.
For Npm I have no idea how to remove it, after typing the uninstall npm, I could still access its version.
Here is my npm version:
PS C:\Users\user> npm version
{ user: '1.0.0',
npm: '5.6.0',
ares: '1.10.1-DEV',
cldr: '31.0.1',
http_parser: '2.7.0',
icu: '59.1',
modules: '57',
nghttp2: '1.25.0',
node: '8.9.4',
openssl: '1.0.2n',
tz: '2017b',
unicode: '9.0',
uv: '1.15.0',
v8: '6.1.534.50',
zlib: '1.2.11' }
Hi i think it had to to wth your NPM cache which you should clean, during development
mine was corrupted, i had to clean it.
Moralso, from https://www.npmjs.com/package/node-powershell, do install your npm with npm i -S node-powershell.
It should do work.
Related
I'm seeing an error when attempting to install the latest cypress on my Windows 10 machine. I was using cypress 8.7 just fine. I deleted node_modules and package-lock.json and removed "cypress": "^8.7.0", from package.json.
Now installing cypress (9.1) I see this error:
npm install --save-dev cypress
npm ERR! Error: Cannot find module 'har-validator'
I see the same error when trying to use the old version too
npm install --save-dev cypress#8.7.0
System info from powershell:
node -v
> v16.8.0
npm -v
> 7.21.0
UPDATE:
My friend is able to install with dependency 8.7.0 in package.json, on OSX with nodejs 14.16.0.
This works today (2021-11-26) for me
npm install --save-dev cypress#8.7.0
There is a Bug in #cypress/request.
Take a look at https://github.com/cypress-io/request/pull/15
EDIT: There is a PR from one of the devs. https://github.com/cypress-io/request/pull/16
Looks like Cypress issue with latest versions. we have this problem for v8.7.0 today. "npm install har-validator" manually installed the missing har-validator module, that helped.
I ran npm -v and it listed a version (I can't remember exactly which) something like 0.6.1.
I ran npm install nodejs-latest to try an update my package. It went to version 6.6.0
I unstalled node.js completely, redownloaded and installed from https://nodejs.org/en/
Checked npm -v and it returned 6.5.0
I ran this suggestion from stackoverflow: How can I update npm on Windows?
It lists out the versions available to install and it only goes up to 6.7.0
I'm totally lost. Why can't I get the current version of node.js on this machine?
Npm is the Node Package Manager, when you run "npm -v" it will show you the npm version and the "node -v" will show you Node version.
To update npm version you should run npm install -g npm .
To update the node version you can download it at the NodeJs website.
Or you can this steps to update.
I want to install latest electron version in my existing angular application.So I followed npm command to install it.
Command : npm i electron#latest
Expected Behavior
Electron should installed successfully.
Actual Behavior
So, Whenever I tried to install electron, after downloading zip file and SAMSUN.txt file , it is throwing below error....
Error: Generated checksum for "electron-v2.0.2-win32-x64.zip" did not match expected checksum.
at ChecksumMismatchError.ErrorWithFilename (E:\CityLawElectron\node_modules\electron-download\node_modules\sumchecker\build.js:41:124)
at new ChecksumMismatchError (E:\CityLawElectron\node_modules\electron-download\node_modules\sumchecker\build.js:56:133)
at Hash. (E:\CityLawElectron\node_modules\electron-download\node_modules\sumchecker\build.js:203:22)
at emitNone (events.js:106:13)
at Hash.emit (events.js:208:7)
at emitReadable_ (_stream_readable.js:513:10)
at emitReadable (_stream_readable.js:507:7)
at addChunk (_stream_readable.js:274:7)
at readableAddChunk (_stream_readable.js:250:11)
at Hash.Readable.push (_stream_readable.js:208:10)
Please note that I have tried to clear my npm cache using npm cache clean --force command and tried to install. but it didn't work.
I also tried to install electron globally using npm i -g electron#latest, but that approach also didn't work.
Please provide solution as soon as possible because I m really stuck at this problem.
Electron Version: 2.0.2
Operating System : windows
node version : 8.11.2
npm version : 6.1.0
Last known working Electron version:
We can solve this issue by using following steps (OS - Windows 10)
Delete "SHASUMS256.txt-x.x.xx" file from "C:\Users{{UserName}}.electron".
Delete Cache folder from "C:\Users{{UserName}}\AppData\Local\electron".
Delete electron from node_modules folder.
Then install electron globally and locally by using following commands -
npm init -y //Note: The -y flag provides default options automatically
npm install electron -g //install electron globally
npm install electron --save-dev --save-exact //install electron as devdependencies
If you are using typescript then install it as global using below command-
npm install -g typescript
Above steps may help you.
whether I use .pkg from nodejs.com or brew install node, the node can be successfully installed but not the npm.
WineHouse:~ yj$ node -v
v4.2.1
WineHouse:~ yj$ npm
-bash: npm: command not found
WineHouse:~ yj$ brew install npm
Warning: node-4.2.1 already installed
Follow the solution provided in the gist: Fixing npm On Mac OS X for Homebrew Users
WARN [config]: config.configure() is deprecated, please use config.set() instead.
WARN [plugin]: Cannot find plugin "karma-phantomjs".
Did you forget to install it ?
npm install karma-phantomjs --save-dev
INFO [karma]: Karma v0.10.2 server started at http://localhost:9018/
WARN [launcher]: Can not load "PhantomJS", it is not registered!
Perhaps you are missing some plugin?
Getting this error. When running npm install karma-phantomjs --save-dev I get an error.
npm ERR! 404 'karma-phantomjs' is not in the npm registry.
I installed karma-phantomjs-launcher --save-dev but i still get an error when running grunt watch.
Anyone else run into this issue?
npm install karma-jasmine --save-dev
npm install karma-phantomjs-launcher --save-dev
Then add the following line to karma.config.js
plugins : ['karma-jasmine', 'karma-phantomjs-launcher']
I got tripped up by this today running
karma: 0.13.7
karma-phantomjs-launcher: 1.0.0
What isn't very obvious is that the launcher has a dependency on:
phantomjs-prebuilt
So if you, install this locally everything should run fine, eg:
npm install phantomjs-prebuilt --save-dev
After some research I realized that I needed to run:
npm install -g karma#canary phantomjs karma-phantomjs-launcher
Once I ran that I went back into my karma-unit.tpl.js file and instead of karma-phantomjs, I changed this to karma-phantomjs-launcher.
Now when I execute a command like grunt build, I get no error regarding phantomJS
This is an issue still open on the repo: #31
Strangely enough the following worked for my Debian based system:
apt-get install libfontconfig
How did I get into this? Reading a comment from the ticket. Hope this will help for others too :-)
I'm running in a CentOS 7 Docker container. Had similar issue.
Had to:
yum install -y tar bzip2 freetype fontconfig
Then
npm install phantomjs --save-dev
worked without errors, which allowed
npm install karma-phantomjs-launcher --save-dev
and that allowed
gulp test
to run without Karma or PhantomJS errors.
Today I had the same. I deleted all the temporary directories and, after rerun it worked.
Before that i also reinstalled phantomjs but without success. It's possible that this influenced, anyway (but i think deleting the temporary directories did the job). Anyway, after deleting temporary folders you can try, if it didn't work you can reinstall phantomjs and also other stuff as other users already wrote.