尝试用ionic构建Android模拟器失败…“未找到类:Javac1.8”[重复]

Question

我试图使用ionic框架的“ionic仿真android”命令来仿真android。

但它会抛出一个异常..

 [aapt] Generating resource IDs...
 [echo] ----------
 [echo] Handling BuildConfig class...
 [buildconfig] Generating BuildConfig class.

 -pre-compile:

 -compile:

 BUILD FAILED
 C:\adt-bundle-windows-x86-20131030\sdk\tools\ant\build.xml:601: The following er
 ror occurred while executing this line:
 C:\adt-bundle-windows-x86-20131030\sdk\tools\ant\build.xml:720: The following er
 ror occurred while executing this line:
 C:\adt-bundle-windows-x86-20131030\sdk\tools\ant\build.xml:734: Class not found:
  javac1.8

 Total time: 1 second

 C:\PhoneApps2\myApp2\platforms\android\cordova\node_modules\q\q.js:126
                throw e;
                      ^
 Error code 1 for command: cmd with args: /s,/c,ant,debug,-f,C:\PhoneApps2\myApp2
 \platforms\android\build.xml,-Dout.dir=ant-build,-Dgen.absolute.dir=ant-gen
 Error: cmd: Command failed with exit code 8
     at ChildProcess.whenDone (C:\Users\Colin\AppData\Roaming\npm\node_modules\co
 rdova\src\superspawn.js:112:23)
     at ChildProcess.EventEmitter.emit (events.js:98:17)
     at maybeClose (child_process.js:730:16)
     at Process.ChildProcess._handle.onexit (child_process.js:797:5)
 Unable to emulate app on platform android. Please see console for more info.

我安装了JRE和JDK的最新版本…在我的系统变量中；

JRE_HOME:  C:\Program Files (x86)\Java\jre8
JAVA_HOME: C:\Program Files (x86)\Java\jdk1.8.0
ANT_HOME: C:\Users\Colin\AppData\Roaming\npm\node_modules\ant\ant
PATH: ...;%ANT_HOME%\bin;%PATH%\tools;%ANDROID_HOME%\tools;%ANDROID_HOME%\platform-tools;%JAVA_HOME%\bin;%JRE_HOME%\bin

有人知道是什么导致了这个问题吗？谢谢。

Answer 1

主要问题是ant<1.9.0不支持Java8。请参见此处接受的答案:
Java1.8类未找到

如果不方便更改所使用的ant版本，那么使用Java6或7就可以了。