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Editorial Team
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Asked: 2026-06-18T01:07:12+00:00

I am opening an older NetBeans project and I want to build it using

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I am opening an older NetBeans project and I want to build it using ant in bash with debian. However, when I try to run ant, I get this error

BUILD FAILED
/home/karelbilek/NetBeansProjects/oldProject/nbproject/build-impl.xml:528:
The following error occurred while executing this line:
/home/karelbilek/NetBeansProjects/oldProject/nbproject/build-impl.xml:261:
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-7-openjdk-i386/jre”

What does that mean? What should I do? In “/usr/lib/jvm/java-7-openjdk-i386/jre” there seems to be an actual JRE when I look there, so what is the problem?

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1 Answer

  1. Editorial Team

    You’re pointing to a JRE (Java runtime environment) but not a JDK (Java development kit).

    Only the JDK contains the compiler (javac). The JRE is used for running Java programs but doesn’t carry the extra components of the JDK (compiler etc.)

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