无法在Android上制作Cordova WebView

我按照here的说明设置Android WebView,但我无法通过下面的第2步：

2. Navigate to the Android package’s /framework directory and run ant
   jar. It creates the Cordova .jar file, formed as
   /framework/cordova-x.x.x.jar.
   

运行ant会返回错误：

build.xml:42: You need to create the file 'local.properties' by running 'android update project -p .' here.

我怎样才能解决这个问题？

解决方法:

>您必须选择要使用的Android版本,如果您已下载Android SDK并添加到系统的路径变量,则可以执行以下操作：

android list targets

它会给你一个像这样的答案：

Available Android targets:
----------
id: 1 or "android-8"
Name: Android 2.2
Type: Platform
API level: 8
Revision: 3
Skins: WQVGA432, QVGA, WQVGA400, WVGA854, WVGA800 (default), HVGA
ABIs : armeabi
----------
id: 2 or "android-17"
Name: Android 4.2.2
Type: Platform
API level: 17
Revision: 2
Skins: WXGA720, WXGA800-7in, WQVGA432, WSVGA, QVGA, WQVGA400, WXGA800, WVGA854, WVGA800 (default), HVGA
ABIs : armeabi-v7a, x86
----------
id: 3 or "Google Inc.:Google Apis:17"
Name: Google Apis
Type: Add-On
vendor: Google Inc.
Revision: 3
Description: Android + Google Apis
Based on Android 4.2.2 (API level 17)
Libraries:
* com.google.android.media.effects (effects.jar)
  Collection of video effects
* com.android.future.usb.accessory (usb.jar)
  API for USB Accessories
* com.google.android.maps (maps.jar)
  API for Google Maps
Skins: WVGA854, WQVGA400, WSVGA, WXGA800-7in, WXGA720, HVGA, WQVGA432, WVGA800 (default), QVGA, WXGA800
ABIs : armeabi-v7a
----------
id: 4 or "android-19"
Name: Android 4.4
Type: Platform
API level: 19
Revision: 1
Skins: WXGA720, WXGA800-7in, WQVGA432, WSVGA, QVGA, WQVGA400, WXGA800, WVGA854, WVGA800 (default), HVGA
ABIs : armeabi-v7a

>我选择了最高的一个,所以我做了：

android update project -p . -t android-19

>最后

ant jar

结果如下：

jar:
[jar] Building jar: C:\Users\Daniele\Desktop\cordova-android\framework\cor
dova-3.5.1.jar

BUILD SUCCESSFUL
Total time: 11 seconds

现在你有了你的罐子.
(更详细的解释可以在Where is cordova-2.7.0.jar?找到)