echo $ANDROID_HOME returns blank (mac os catalina)

Question

I've followed the instructions here to install android studio and the android sdk.

I've added the following lines to ~/.bash_profile, and I've run source ~/.bash_profile.

export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH=$PATH:$ANDROID_HOME/emulator
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/tools/bin
export PATH=$PATH:$ANDROID_HOME/platform-tools

The path is correct, I've checked it in Android Studio > Preferences > System Settings > Android SDK.

What is the problem? When I run source ~/.bash_profile, and then echo $ANDROID_HOME, I get some output. But if I close the terminal and restart it, and then I run echo $ANDROID_HOME, I get no output.

If found similar questions here and on other websites, but nothing seems to work. Editing the export lines, directly executing "export ..." in the terminal instead of bash_profile, ... . It all fails to work.

Anyone some tips to help me out?

Answer 1

Even I am using Mac Catalina 10.15.3. After spending 1 whole week I realized that setting JAVA_HOME, M2_HOME and ANDROID_HOME in ~/.bash_profile won't work in Catalina and it is uncertain.

I had to move all my environment variables path from ~/.bash_profile to ~/.zshrc file

Below is my ~/.zshrc file

export JAVA_HOME=$(/usr/libexec/java_home)

export PATH=${JAVA_HOME}:$PATH

---------------------------------------------------------

export M2_HOME=/usr/local/Cellar/maven/3.6.3_1/libexec

export PATH=${M2_HOME}/bin:$PATH

----------------------------------------------------------

export ANDROID_HOME=/usr/local/share/android-sdk

export PATH=${ANDROID_HOME}/emulator:$PATH

export PATH=$ANDROID_HOME/tools:$PATH

export PATH=$ANDROID_HOME/tools/bin:$PATH

export PATH=$ANDROID_HOME/platform-tools:$PATH

Once you are set. Come out of zshrc by pressing Esc:wq! Close & open the terminal.

source ~/.zshrc

echo $ANDROID_HOME

This should display path to ANDROID_HOME

Hope this helps!

Answer 2

Even i was also using Mac Catalina 10.15

Fix :

Step 1: Open Terminal

Step 2: type the command : nano .zshrc

Step 3: Add environment variable

export ANDROID_HOME=$HOME/Library/Android/sdk

export PATH=$PATH:$ANDROID_HOME/emulator

export PATH=$PATH:$ANDROID_HOME/tools

export PATH=$PATH:$ANDROID_HOME/tools/bin

export PATH=$PATH:$ANDROID_HOME/platform-tools

Step 4: Save and quit or (control+o) , Enter + Control+x

Step 5: Restart Terminal

Now reverify with echo $ANDROID_HOME it will show path /Users/****/Library/Android/sdk