What can not miss to set ionic environment for ubuntu 2

Ionic Framework ionic-v3
1

I’m starting studies with ionic 2 and have taken a bad beating.
Whenever I try to run the command ionic run android the following error occurs:

add to body class: platform-android

ANDROID_HOME=/home/master/android-studio

JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64

Error: Could not find gradle wrapper within Android SDK. Might need to update your Android SDK.
Looked here: /home/master/android-studio/tools/templates/gradle/wrapper

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lack any dependency?

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master@positivo:~/ionic/AnsoMessage$ ionic info

Your system information:

Cordova CLI: 6.3.0
Ionic Framework Version: 2.0.0-beta.11
Ionic CLI Version: 2.0.0-beta.36
Ionic App Lib Version: 2.0.0-beta.19
OS: Distributor ID: Ubuntu Description: Ubuntu 14.04.5 LTS
Node Version: v4.4.7

2

Have you opened the Android SDK downloader to get API v23 or API v22? I’d start there, if that doesn’t work then try reinstalling your Android SDK.

3

installed java packages missing and Studio SDK. Thanks.
Now I have another problem. cordova_no_available.

4

Try this:
sudo npm install cordova -g