Ant needs tools.jar and unable to find it

Question

I am putting together a dev environment for a Java program and after the first try of my Ant build scripts I got this error:

Unable to locate tools.jar. Expected         


        

Answer 1

It seems like you can have Java installed in /usr/lib/jvm/java-6-openjdk but only have the JRE, not the JDK. This fixed it for me:

sudo apt-get install openjdk-6-jdk