Ionic 4 running on android device error

Ionic Framework
1

So I’m trying to run ionic 4 on my device. Followed eveything in the installation guide in the website and going through the running on android tab. This is what I get.

Screenshot%20from%202019-11-05%2012-34-19
Screenshot%20from%202019-11-05%2012-34-19732×438 80.9 KB

But i already installed android studio. Here is my installed sdk. Im trying to run it on an android 9 device.
Screenshot%20from%202019-11-05%2012-37-09
Screenshot%20from%202019-11-05%2012-37-091042×709 118 KB

And here is my /etc/environment:
Screenshot%20from%202019-11-05%2012-43-59
Screenshot%20from%202019-11-05%2012-43-59732×438 21.8 KB

Screenshot%20from%202019-11-05%2012-42-57
Screenshot%20from%202019-11-05%2012-42-57732×438 27.1 KB

Screenshot%20from%202019-11-05%2012-42-32
Screenshot%20from%202019-11-05%2012-42-32732×438 56.7 KB

Screenshot%20from%202019-11-05%2012-39-22
Screenshot%20from%202019-11-05%2012-39-22651×716 32.6 KB

Am I missing something?

2

Found the solution to my question
0

IDK if some of you people have the same problem, but it’s because of the Gradle. I installed it the way the website said, tried both automatically with SDKmanager and also the manual downloads. Still didnt worked for me. So I installed it using:

sudo add-apt-repository ppa:cwchien/gradle

sudo apt-get update

sudo apt-get install gradle

Then find location where it was installed via ‘whereis gradle’ then add to path. Now I can install the app on my device