JavaFX DataApp示例无法编译和运行。错误太多了

Question

我正在尝试运行DataApp示例。当我从文件夹中打开所有项目时，其中一些项目在许多java文件中都有错误，如下图所示。

我在Windows 7 64bit上运行该项目，使用Netbeans 8.0 Beta，JDK 8，glassfish 4.0

当我尝试编译其中一个包含错误的java文件时，我收到以下错误：

ant -f C:\\Users\\acer\\Desktop\\DataApp\\DataAppClient -     Djavac.includes=com/javafx/experiments/dataapp/client/DataApplication.java -   Dnb.internal.action.name=compile.single compile-single
 C:\Users\acer\Desktop\DataApp\DataAppClient\nbproject\build-impl.xml:88: The J2SE      Platform is not correctly set up.
 Your active platform is: default_platform, but the corresponding property "  platforms.default_platform.home" is not found in the project's properties files. 
 Either open the project in the IDE and setup the Platform with the same name or add it manually.
 For example like this:
 ant -Duser.properties.file=<path_to_property_file> jar (where you put the property "platforms.default_platform.home" in a .properties file)
 or ant -Dplatforms.default_platform.home=<path_to_JDK_home> jar (where no properties file is used)
 BUILD FAILED (total time: 0 seconds)

如何成功编译程序？

提前致谢....