'tools.jar' seems to be not in Studio classpath.
Please ensure JAVA_HOME points to JDK rather than JRE.
That showswhen i run studio.sh. I have searched it in web and on this site. I know there are already solved topics, but I tried them and it didn't worked.
Im using ElementaryOS (Linux).
I have already installed JDK and the /etc/environment file is edited already, so why it shows?