我使用yum在Fedora 5机器上安装了Ant,但Ant不启动。我得到这个错误信息:我的蚂蚁配置有什么问题?
[bash]# ant
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/tools/ant/launch/Launcher
Caused by: java.lang.ClassNotFoundException: org.apache.tools.ant.launch.Launcher
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: org.apache.tools.ant.launch.Launcher. Program will exit.
我已经设置了以下环境变量:
JAVA_HOME = /usr/java/latest
ANT_HOME = /usr/bin
蚂蚁安装在/usr/bin/ant
。
我也遇到了this post,看来JAVAVER_LIBDIR
变量不指向存在的东西。我设置了一个符号链接,就像帖子建议为作者解决了问题,但它并没有为我解决问题。
[bash]# sudo ln -s /usr/share/java /usr/share/java-1.6.0
编辑:我还设置与JAVAVER_JNIDIR
变量解决了类似的问题的符号链接:
[bash]# sudo ln -s /usr/lib/java /usr/lib/java-1.6.0
我现在得到一个不同的错误信息:
[bash]# ant --execdebug
/usr/bin/build-classpath: error: Could not find jaxp_parser_impl Java extension for this JVM
/usr/bin/build-classpath: error: Could not find xml-commons-apis Java extension for this JVM
/usr/bin/build-classpath: error: Some specified jars were not found
exec "/usr/java/latest/bin/java" -classpath "/usr/share/java-1.6.0/ant.jar:/usr/share/java-1.6.0/ant-launcher.jar:/usr/java/latest/lib/tools.jar" -Dant.home="/usr" -Dant.library.dir="/usr/lib" org.apache.tools.ant.launch.Launcher -cp ""
Buildfile: build.xml does not exist!
Build failed
关闭谷歌这些错误消息...
这是问题的一部分。谢谢。我仍然没有完全解决所有问题,但是这样做一直有帮助。 – 2010-02-25 18:10:10