tools.jar seems to be not in Android Studio classpath on Windows 8

Question

I installed Android Studio but it was giving me error that I need to install JDK but JDK was already installed. Then I realized it is asking to install 64bit version of JDK.

Answer 1

In my case I've installed newest Java version without uninstalling older version first. After I've uninstalled the older Java version this error was gone.

Also make sure your JAVA_HOME system variable is set properly, e.g.: Variable Name: JAVA_HOME Variable Value: C:\Program Files\Java\jdk1.8.0_31\

And finally, that you've installed proper version for your OS, x86 or x64.