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

Try the following:

% sudo apt-get install sun-java6-jdk

% sudo update-alternatives --config java

select the option that has the path

/usr/lib/jvm/java-6-sun/jre/bin/java

Worked for me on an ubuntu 10.4

u can try to put your JAVA_HOME also, as follows:

% sudo export JAVA_HOME=$(readlink -f /usr/bin/javac | sed "s:/bin/javac::")