Ant Build Error Unable To Find A Javac Compiler
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Ant Unable To Find A Javac Compiler Eclipse
answers to any questions you might have Meta Discuss unable to find a javac compiler com.sun.tools.javac.main is not on the classpath. ant the workings and policies of this site About Us Learn more about Stack Overflow the
Build Failed Unable To Find A Javac Compiler
company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss unable to find a javac compiler ubuntu Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Ant build not working: unable to find a javac compiler up vote 14 down vote favorite 2 I am trying unable to find a javac compiler eclipse java_home to run some Java EE examples. Ant is suggesting: Perhaps JAVA_HOME does not point to the JDK. It is currently set to "C:\Program Files\Java\jre7 My JAVA_HOME variable is: C:\Program Files\Java\jdk1.7.0_03 when I look at my windows 7 variables However, my path is (notice the jdk1.6.0_26): %M2_HOME%\bin;%ANT_HOME%\bin;%JAVA_HOME%\bin;%SystemRoot%\system32;%SystemRoot%; %SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\; C:\Program Files\Microsoft Application Virtualization Client;%M2%; C:\Program Files\QuickTime\QTSystem\;C:\Program Files\TortoiseSVN\bin; %GLASSFISH%;%GLASSFISH_PARENT%; PATH=C:\Maven\apache-maven-2.2.1\bin;C:\Ant\apache-ant-1.8.2\bin;**C:\Program File s\Java\jdk1.6.0_26\bin;**C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C :\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft Applicatio n Virtualization Client;C:\Maven\apache-maven-2.2.1\bin;C:\Program Files\QuickTi me\QTSystem\;C:\Program Files\TortoiseSVN\bin;C:\glassfish3\glassfish\bin;C:\gla ssfish3\bin;C:\Sun\jwsdp-2.0\jwsdp-shared\bin Do I have to do anything special to get windows to save my path? More Info: C:\javaeetutorial5\examples\web\hello2>ant Unable to locate tools.jar. Expected to find it in C:\Program Files\Java\jre7\li b\tools.jar Buildfile: C:\javaeetutorial5\examples\web\hello2\build.xml -pre-init: init: default-ear: -pre-compile: bpp-actual-compilation: [echo] Compiling hello2 [echo] javaee.classpath.prefix is: C:\glassfish3/lib [echo] is.glassfish.v3 is: ${is.glassfish.v3} [javac] C:\javaeetutorial5\examples\bp-project\command-line-ant-tasks.xml:93 : warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=las t; set to false for repeatable builds BUILD FAILED C:\javaeetutorial5\examples\bp-project\command-line-ant-tasks.xml:93: Unable to find a javac compiler; com.sun.tools.javac.
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you, helping each other. Join them; it only takes a minute: Sign up Unable to find a javac compiler com.sun.tools.javac.Main is not on the classpath error up vote 2 down vote favorite 1 I am trying to http://stackoverflow.com/questions/9930181/ant-build-not-working-unable-to-find-a-javac-compiler run java application and I am getting following error, 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 I have gone through many SO questions and found solution is JAVA_HOME should be point to JDK, not JRE. Then I have tried to print JAVA_HOME in command prompt, I had set this JAVA_HOME from my computer->properties->env variables -> system vars as below, I had also added http://stackoverflow.com/questions/29668849/unable-to-find-a-javac-compiler-com-sun-tools-javac-main-is-not-on-the-classpath new variable in eclipse using preferences as, And finally I am still getting the same error. Whats wrong with JAVA_HOME ? Update : In eclipse-preferences-installed jres there is only one entry is present and which is jdk and selected, And under project properties java build path-libraries there is JRE System Liberary [jdk1.8.0_31] is used. Update 1 : C:\Program Files\Java\jdk1.8.0_31 have folder named jre. Is that jre folder causing this issue ? Can I remove this folder ? Is there is any way to add only jdk liberary in project ? java eclipse classpath share|improve this question edited Apr 16 '15 at 13:27 asked Apr 16 '15 at 8:06 fledgling 1,79611943 Pleas confirm whether you started a new console after setting variables or not ? If it was a new console than to me everything else looks clean and correct, I suggest you uninstall and reinstall java ? Sometimes installation errors are there. Use .msi or .exe file to install rather than copy pasting folder. –aProgrammer Apr 16 '15 at 8:13 add a comment| 1 Answer 1 active oldest votes up vote 4 down vote accepted Eclipse is an IDE and as such, it has (at least) two Java versions: The one which it uses itself to run (JAVA_HOME) and a JVM which it uses to run your application. The two don't ne
Things LocationTech Long-Term Support PolarSys Science OpenMDM More Community Marketplace Events Planet Eclipse Newsletter Videos Participate Report a Bug Forums Mailing Lists Wiki IRC How to Contribute Working Groups Automotive Internet of Things https://wiki.eclipse.org/FAQ_Why_can't_my_Ant_build_find_javac%3F LocationTech Long-Term Support PolarSys Science OpenMDM Toggle navigation Breadcrumbs Home Eclipse Wiki FAQ Why can't my Ant build find javac? Log in Jump to: navigation, search ---Navigation---Main PageCommunity portalCurrent eventsRecent changesRandom pageHelpNavigation https://forum.processing.org/topic/com-sun-tools-javac-main-is-not-on-the-classpath Main Page Community portal Current events Recent changes Random page Help ---Toolbox---Page informationPermanent linkPrintable versionSpecial pagesRelated changesWhat links hereToolbox Page information Permanent link Printable version Special pages Related changes What links here unable to Page Discussion View source History FAQ Why can't my Ant build find javac? Ant tasks that include the javac task for compiling Java source will fail if a Java compiler cannot be found. This results in an error message like the following: 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 This simply means unable to find that Ant could not find a Java compiler. The easiest solution is to make sure that tools.jar, which is included with any JDKas opposed to a JREis on Ants classpath. You can add items to Ants classpath from the Ant > Runtime preference page. If you launch Eclipse by using a full JDK instead of a JRE, tools.jar should appear on the Ant classpath automatically. Alternatively, Ant supports the notion of a compiler adapter, allowing you to plug in your own Java compiler, such as the Java compiler that is built into Eclipse. The Eclipse compiler adapter is found in the org.eclipse.jdt.core in jdtCompilerAdapter.jar. Again, you need to make sure that this JAR is on Ants classpath from the Ant preference page. Then, simply add the following line to your build file to specify the compiler:
Tool DevelopmentEvents and OpportunitiesGeneral Discussion Sub forum : Move this topic Cancel Library and Tool Development clankill3r com.sun.tools.javac.Main is not on the classpath. in Library and Tool Development • 1 year ago I moved from my mac to a pc and i want to be able to compile a library. I get this error: BUILD FAILED C:\Documents and Settings\Sjoerd\workspace\PPath\resources\build.xml:107: The following error occurred while executing this line: C:\Documents and Settings\Sjoerd\workspace\PPath\resources\build.xml:141: 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 "C:\Program Files\Java\jre6" 107