Javac在ant build中不起作用

Question

我尝试在Ubuntu11.02的命令行上运行ant build.xml中的javac。然后运行“ant deploy-live”之后，命令行打印如下：

Compile failed; see the compiler error output for details.
    at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1150)
    at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:912)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
    at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    at org.apache.tools.ant.Task.perform(Task.java:348)
    at org.apache.tools.ant.Target.execute(Target.java:390)
    at org.apache.tools.ant.Target.performTasks(Target.java:411)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
    at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:442)
    at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
    at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    at org.apache.tools.ant.Task.perform(Task.java:348)
    at org.apache.tools.ant.Target.execute(Target.java:390)
    at org.apache.tools.ant.Target.performTasks(Target.java:411)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
    at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
    at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.Main.runBuild(Main.java:809)
    at org.apache.tools.ant.Main.startAnt(Main.java:217)
    at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
    at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

我关于javac的任务：

<javac deprecation="true"
               includeantruntime="false"
               debug="true"
               debuglevel="${debuglevel}"
               destdir="${project.build.outputpath}"
               verbose="true"
               encoding="UTF-8">
            <src path="${project.src.classes}" />
            <compilerarg value="-Xlint" />
            <classpath refid="core.classpath" />
</javac>

操作系统：Ubuntu 11.10（oneiric）

Java版本：Java版本“1.7.0”Java(TM)SE运行时环境（build 1.7.0-B147)Java HotSpot(TM)64位服务器VM（build 21.0-B17，混合模式）

Ant版本：Apache Ant(TM)版本1.8.2编译于2011年8月19日

我试过对build.xml文件进行编码，但不能工作。

请帮忙

Answer 1

首先，您需要计算错误的详细信息

尝试使用-debug或-verbose标志运行and

http://Ant.apache.org/manual/running.html影响Ant日志输出量的选项有:-quiet，它指示Ant向控制台打印较少的信息；-verbose，这会导致Ant将附加信息打印到控制台；和-debug,这会使Ant打印更多的附加信息。