Newbe Dev Stack

Answer : Update For macOS only happens on macOS Mojave 10.14.6 . On macOS Catalina 10.15.3 , you only need to set JAVA_HOME in your shell. This answer deals with macOS cases. It doesn't imply Linux or Windows solutions. TLDR On macOS , Android Studio doesn't receive your environment variables defined in your .bash_profile when launched from Finder.app . You must define your environment variables in launchctl : launchctl setenv JAVA_HOME /path/to/my/project/specific/jdk or, if you want to use your system-defined JDK: launchctl setenv JAVA_HOME `/usr/libexec/java_home` But this only works for the current session of your machine. Next, you have to create a ~/Library/LaunchAgents/environment.plist file: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label...

Answer : It is very late for my answer but still to the people who reference this in the future, I had the same issue. Mine was x64 bit OS and I was trying to open studio.exe which is x32 bit. I opened studio64.exe and it worked. As well as JAVA_HOME which should be set to the jdk directory e.g. C:\Program Files\Java\jdk1.7.0_21 you also have to add a path to the jdk bin directory e.g. C:\Program Files\Java\jdk1.7.0_21\bin . As you already know how to set the JAVA_HOME variable adding the extra directory to the path variable is just the same but you have to edit an existing variable and add the path separated by a semicolon e.g. add ;C:\Program Files\Java\jdk1.7.0_21\bin to the end of the path. And then restart your PC, to start the Android Studio. More details at: Getting Started With Android Studio It works like this: JAVA_HOME : C:\Program Files\Java\jdk1.7.0_21 and PATH : C:\Program Files\Java\jdk1.7.0_21\bin