I am MAC OS X Yosemite I have done all the export tutorial to set the android_home but non of it working for me
I had the same problem. Luckily it is easily fixable. Just follow the next few steps (Command-line from terminal).
Open the bash_profile file using command line arguments with -
vi ~/.bash_profile
OR
It is possible to open bash_profile in TextEdit and make changes there. Use the following command to do this -
open -a "TextEdit" .bash_profile
Check if ANDROID_HOME has been set in this file. If it has been already set, delete it (probably wrong). Also check if PATH in this file has any reference to tools or platform-tools (of the android sdk). You'd be better off deleting these before you start typing the following commands.
Set ANDROID_HOME correctly using the following command
export ANDROID_HOME=/Users/adarsh/android-sdk-macosx
^this is my command because I installed it in that location. Please replace "adarsh" with your username and "android-sdk-manager" with the name of your android sdk folder that you downloaded. Do not copy-paste this command.
For example, if your username is "John" and you the android sdk folder you downloaded and installed is in "Downloads" and you changed your folder name to "sdk", then your command would be -
export ANDROID_HOME=/Users/John/Downloads/sdk
Set PATH with the following command
export PATH=$ANDROID_HOME/tools:$PATH
Refresh your bash_profile to set all the changes we just made by typing the command
source ~/.bash_profile
You should be good to go now and begin developing with ionic!Hope this helps. Cheers.