我正在尝试使用 Phonegap 制作我的第一个应用程序，我在命令中运行时得到了这个
C:\USERS\KTR\DESKTOP\PHONEGAP\LIB\ANDROID\BIN>create C:\Users\KTR\Desktop\Demoap
p com.example.Demoapp Demoapp
The JAVA_HOME environment variable is not set.
Set JAVA_HOME to an existing JRE directory.
Remember to also add JAVA_HOME to the PATH variable.
After updating system variables, open a new command window and retry.
任何帮助将不胜感激谢谢