ionic 2 - Error Could not find an installed version of Gradle either in Android Studio

Question

Life is too short to spend it on messing with paths, etc.

Since I had Homebrew installed on the iMac, I just ran this command:

brew install gradle

The Ionic3 project started to build successfully.

Try installing gradle and include it into your path. Click the link below to get manual. https://gradle.org/install

Just install gradle on linux, Even if Android Studio is installed,

sudo apt install gradle

For windows users:

Download gradle binary from the link in the answer Gradle Download

Extract the zip file to 'C:\Gradle' or somewhere else

open Edit Environment variable dialog from start menu > Search

Click 'New' under system variables and add as below

Variable Name GRADLE_HOME Variable Value C:\Gradle\gradle-4.0.1

Then choose PATH variable from system variable list

append the gradle path to variable value like this C:\Gradle\gradle-4.0.1\bin

then press win Key+R type cmd then enter > in command terminal type gradle -v

if the setup is correct you will see the gradle installation details

I was already installed Android Studio and it's just need to add gradle PATH to ~/.bash_profile on my MacOSX Mojave. Also if gradle is upgraded then path might need to update again.

Example .bash_profile :

export ANDROID_SDK_ROOT="~/Library/Android/sdk"
export PATH=$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools
export JAVA_HOME=$(/usr/libexec/java_home)
export GRADLE_PATH="~/.gradle/wrapper/dists/gradle-4.10.1-all/455itskqi2qtf0v2sja68alqd/gradle-4.10.1/bin"
export ANDROID_STUDIO="/Applications/Android Studio.app/Contents/MacOS"
export PATH="$PATH:$GRADLE_PATH:$ANDROID_STUDIO"

When edited your .bash_profile then run a command below to read it again.

source ~/.bash_profile

For Windows you can try below solution

Copy your gradle-->bin path and add it to system environment variable path.

In my case gradle path is

C:\Users\username\.gradle\wrapper\dists\gradle-3.3-all\55gk2rcmfc6p2dg9u9ohc3hw9\gradle-3.3\bin

This solution worked for me.

In Ubuntu, Installing latest version of gradle solved the issue for me.

Try these steps to install the latest version,

sudo add-apt-repository ppa:cwchien/gradle

sudo apt-get update

sudo apt-get install gradle

then build using,

cordova build android or ionic cordova build android

Note: If you install gradle from ubuntu repo, it will install the old version 1.4 and will not help, so sudo apt-get install gradle alone will not help most times, if you did not add the repo ppa:cwchien/gradle earlier