PS F:\ionic2\ionic2fire> cordova build android
Subproject Path: CordovaLib
ANDROID_HOME=E:\Android\sdk
JAVA_HOME=E:\jdk1.8.0_92\jdk
Error: Could not find gradle wrapper within Android SDK. Might need to upd
ate your Android SDK.
Looked here: E:\Android\sdk\tools\templates\gradle\wrapper
解决办法:下载 Android SDK tools package(https://dl.google.com/android/repository/tools_r25.2.3-windows.zip)之后解压到C:\Users\\AppData\Local\Android\sdk目录,之后就可以运行了