Menu
I am trying to follow a tutorial about how to use ant to build and run your application. I've followed all the steps and have created the build file, but when I try to run ant it gives me this error.
BUILD FAILED /home/bilal/tmp/ant/build.xml:19: Unable to find a javac compiler; com.sun.tools.javac.Main is not on the classpath. Perhaps JAVA_HOME does not point to the JDK. It is currently set to "/usr/lib/jvm/java-6-openjdk/jre"
Any ideas how to resolve this issue ?
570
If you're doing any sort of development, or building with Maven or Ant, you need to point to the JDK (Java Development Kit) where utilities such as javac (the Java Compiler) reside. Otherwise, you can point to the JRE (Java Runtime Environment). The JDK contains everything the JRE has and more.
Verify JAVA_HOME Enter the command echo %JAVA_HOME% . This should output the path to your Java installation folder. If it doesn't, your JAVA_HOME variable was not set correctly. Please make sure you're using the correct Java installation folder, or repeat the steps above.
No. Traditionally, JAVA_HOME is set to the JRE or SDK main directory. The bin/ subdirectory might be in your PATH, though.
Set the JAVA_HOME System Variable Click the Advanced tab, and then click Environment Variables. Under System Variables, look for the JAVA_HOME system variable. The JAVA_HOME path should point to the location that you recorded when you installed the JRE.
Make JAVA_HOME variable point to a jdk installation, not jre.
You are referencing the runtime environment, not the development kit - it can't find the compiler because its not there.
From the line you posted, which states you have open-jdk you can just remove the jre at end:
export JAVA_HOME='/usr/lib/jvm/java-6-openjdk/' If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
