Develop Reference

Error while trying to install ionic on ubuntu 18.04

How to install ionic 4 in ubuntu 18.04.Which version of npm nodejs cordova android sdk should go hand in hand for installing ionic 4 on ubuntu 18.04.Please do help me.I tried installing but i am getting error when i run the project.
npm ERR! Linux 4.15.0-20-generic
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "i"
npm ERR! node v8.10.0
npm ERR! npm v3.5.2
npm ERR! code Unknown system error -122
npm ERR! errno -122
npm ERR! syscall close

Try this script: Ionic Cordova installer for Ubuntu
Its will Automatically install all required things. Your just have to update after this script.

npm installation with firebase functions

i faced this error while i trying to install npm using cmd on windows 10
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! grpc#1.6.6 install: `node-pre-gyp install --fallback-to-build --library=static_library`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the grpc#1.6.6 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\MANA\AppData\Roaming\npm-cache\_logs\2017-11-21T07_27_36_499Z-debug.log
NPM install failed, continuing with Firebase initialization...
i Writing configuration info to firebase.json...
i Writing project information to .firebaserc...
+ Firebase initialization complete!

Ionic is Not Installing on Windows 7 - Getting Many Errors

I am getting this error while i am trying to install Ionic
$ npm install ionic cordova -g
npm ERR! not a package C:\Users\Sridhar\AppData\Roaming\npm-cache\ansi-regex\2.0.0\package.tgz
npm ERR! not a package C:\Users\Sridhar\AppData\Roaming\npm-cache\ansi-regex\2.0.0\package.tgz
npm ERR! not a package C:\Users\Sridhar\AppData\Roaming\npm-cache\ansi-regex\2.0.0\package.tgz
npm WARN engine xmlbuilder#2.2.1: wanted: {"node":"0.8.x || 0.10.x"} (current: {"node":"4.2.2","npm":"2.14.7"})
npm ERR! not a package C:\Users\Sridhar\AppData\Roaming\npm-cache\ansi-regex\2.0.0\package.tgz
npm ERR! not a package C:\Users\Sridhar\AppData\Roaming\npm-cache\ansi-regex\2.0.0\package.tgz
npm ERR! not a package C:\Users\Sridhar\AppData\Roaming\npm-cache\delayed-stream\0.0.5\package.tgz
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "ionic" "cordova" "-g"
npm ERR! node v4.2.2
npm ERR! npm v2.14.7
npm ERR! path C:\Users\Sridhar\AppData\Roaming\npm\node_modules\ionic\node_modules\npm\node_modules\read-installed
npm ERR! code UNKNOWN
npm ERR! errno -4094
npm ERR! syscall scandir
npm ERR! UNKNOWN: unknown error, scandir 'C:\Users\Sridhar\AppData\Roaming\npm\node_modules\ionic\node_modules\npm\node_modules\read-installed'
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR! <https://github.com/npm/npm/issues>
npm ERR! error rolling back Error: UNKNOWN: unknown error, scandir 'C:\Users\Sridhar\AppData\Roaming\npm\node_modules\ionic\node_modules\npm\node_modules\read-installed'
npm ERR! error rolling back at Error (native)
npm ERR! error rolling back { [Error: UNKNOWN: unknown error, scandir 'C:\Users\Sridhar\AppData\Roaming\npm\node_modules\ionic\node_modules\npm\node_modules\read-installed']
npm ERR! error rolling back errno: -4094,
npm ERR! error rolling back code: 'UNKNOWN',
npm ERR! error rolling back syscall: 'scandir',
npm ERR! error rolling back path: 'C:\\Users\\Sridhar\\AppData\\Roaming\\npm\\node_modules\\ionic\\node_modules\\npm\\node_modules\\read-installed' }
npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\Sridhar\npm-debug.log
Please help me to install Ionic

Please follow the below steps to install ionic.
IONIC Setup
Setup Environment (Installations)
Install Node.js
a. http://nodejs.org/download/
install ionic framework
a. $ npm install -g cordova ionic
install android SDK and set environment variables
a. Set following environment variable
b. set ANDROID_HOME=C:\\android-sdk-windows
Install Android Target 19 (follow following steps)
Open the SDK Manager (typing android into the terminal, assuming it's in your file path)
Selected box next to Android 4.4.2 (API 19)
Clicked button Install 8 packages
Install ant using CMD window
npm Install -g ant
a. Add following path in environment variables (PATH):
C:\Users\user.name\AppData\Roaming\npm\node_modules\ant\ant\bin
Once you setup the ionic environment.
Create the basic application for testing.
Open node.js command prompt
ionic start myApp tabs
cd myApp
ionic serve (it will open the application in browser)
ionic platform add android (replace ios with android if you want to add iOS platform)
ionic build android (replace ios with android if you want to build in iOS platform)
ionic emulate android android (replace ios with android if you want to emulate iOS platform)
NOTE: If ERR occurs, follow below link:
installing ionic npm ERR! tar.unpack error

Have you followed the right installation sequence ?
Install or update Node.js
Download the most recent version of Node.js. If you are running an older version of Node, make sure to update it because older versions had issues with npm.
As with the other commands, nodejs should now function in cmd.exe but just to be careful, add the full path to the bin folder in Node to your PATH, which will look something like C:\Program Files\nodejs\bin
Install Cordova
Open a new cmd.exe window, and run:
$ npm install -g cordova
Install Ionic
$ npm install -g ionic
Find the official installation doc and this too for more.

Getting Error npm ERR! errno 50 while installing Ionic

Hello I tried making Ionic App using node.js
first time I successfully made the simple Hello World Project in ionic
Next day because of the some reason i have to re-install the node.js
now when i am trying to make ionic app It's giving me an error
Your environment has been set up for using Node.js 0.10.32 (ia32) and npm.
C:\Users\SABA-PC>npm install -g ionic gulp
npm ERR! Error: EPERM, unlink 'C:\Users\SABA-PC\AppData\Roaming\npm\node_modules
\ionic\node_modules\.bin'
npm ERR! { [Error: EPERM, unlink 'C:\Users\SABA-PC\AppData\Roaming\npm\node_mod
ules\ionic\node_modules\.bin']
npm ERR! errno: 50,
npm ERR! code: 'EPERM',
npm ERR! path: 'C:\\Users\\SABA-PC\\AppData\\Roaming\\npm\\node_modules\\ionic
\\node_modules\\.bin' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! System Windows_NT 6.2.9200
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nod
ejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "ionic" "gulp"
npm ERR! cwd C:\Users\SABA-PC
npm ERR! node -v v0.10.32
npm ERR! npm -v 1.4.28
npm ERR! path C:\Users\SABA-PC\AppData\Roaming\npm\node_modules\ionic\node_modul
es\.bin
npm ERR! code EPERM
npm ERR! errno 50
npm ERR! stack Error: EPERM, unlink 'C:\Users\SABA-PC\AppData\Roaming\npm\node_m
odules\ionic\node_modules\.bin'
npm ERR! error rolling back Error: EPERM, unlink 'C:\Users\SABA-PC\AppData\Roami
ng\npm\node_modules\ionic\node_modules\.bin'
npm ERR! error rolling back { [Error: EPERM, unlink 'C:\Users\SABA-PC\AppData\R
oaming\npm\node_modules\ionic\node_modules\.bin']
npm ERR! error rolling back errno: 50,
npm ERR! error rolling back code: 'EPERM',
npm ERR! error rolling back path: 'C:\\Users\\SABA-PC\\AppData\\Roaming\\npm\\
node_modules\\ionic\\node_modules\\.bin' }
npm ERR! not ok code 0
In my Environment Variable Path=C:\Users\SABA-PC\AppData\Roaming\npm
i tried location the folder C:\\Users\\SABA-PC\\AppData\\Roaming\\npm\\
node_modules\\ionic\\node_modules\\.bin
which is saying Access is denied eventhough i am running node.js as a administrator
Please help

There might be a problem with your node or npm as you've said you had to reinstall it. Try to change the location of your npm cache by running this command:
npm config set cache C:\Users\SABA-PC\AppData\Roaming\nodejs\npm-cache --global
And read more about npm updates here:
https://github.com/npm/npm/wiki/Troubleshooting#upgrading-on-windows

Android UI automation test with appium

I just working on android UI automation test in few weeks. I tried with robotium in a time and now I want change to appium framework. And my question are:
I read that appium is a test tool to test webview application. So how about the other app that is not webview app?
Can I run test from appium on genymotion?
Any other tool do I need to install with appium(selenium or something)?
Edit
When I try to install appium with out sudo I got this error
ERR! Error: EACCES, unlink
'/Users//appium/node_modules/.bin/instruments-client.js'
npm ERR! { [Error: EACCES, unlink
'/Users//appium/node_modules/.bin/instruments-client.js']
npm ERR! errno: 3,
npm ERR! code: 'EACCES',
npm ERR! path:
'/Users//appium/node_modules/.bin/instruments-client.js' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! System Darwin 13.1.0
npm ERR! command "/usr/local/Cellar/node/0.10.26/bin/node"
"/usr/local/bin/npm" "link" "appium-uiauto"
npm ERR! cwd /Users/yaphatak/appium
npm ERR! node -v v0.10.26
npm ERR! npm -v 1.4.3
npm ERR! path
/Users//appium/node_modules/.bin/instruments-client.js
npm ERR! code EACCES
npm ERR! errno 3
npm ERR! stack Error: EACCES, unlink
'/Users//appium/node_modules/.bin/instruments-client.js'
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /Users//appium/npm-debug.log
npm ERR! not ok code 0
Then I try with sudo then run appium I got this error
error: Appium will not work if used or installed with sudo. Please
rerun/install as a non-root user. If you had to install Appium using
sudo npm install -g appium, the solution is to reinstall Node using
a method (Homebrew, for example) that doesn't require sudo to install
global npm packages."
Any help?

1- Yes, Appium can test non-webview apps. The first line on the Appium introduction page says:
Appium is an open-source tool you can use to automate mobile native, mobile web, and mobile hybrid applications on iOS and Android platforms.
2- Yes, Appium should work with Genymotion. See here for an example.
3- Your tests will need to reference the Selenium libraries in order to communicate with Appium.