下载了qt for android的最新版本5.7，配置了最新的ndk r10b和ant1.9.7和jdk1.8.0_92，sdk是没有版本的出现了以下报错Generating Android Package
Input file: E:/Qt on android/2.hello android/build-helloqtonandroid-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_0-Release/android-libhelloqtonandroid.so-deployment-settings.json
Output directory: E:/Qt on android/2.hello android/build-helloqtonandroid-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_0-Release/android-build/
Application binary: E:/Qt on android/2.hello android/build-helloqtonandroid-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_0-Release/libhelloqtonandroid.so
Android build platform: android-15
Install to device: No
Invalid minSdkVersion version, minSdkVersion must be >= 16
13:34:07: 进程"C:\Qt\Qt5.7.0\5.7\android_armv7\bin\androiddeployqt.exe"退出，退出代码 12 。
Error while building/deploying project helloqtonandroid (kit: Android for armeabi-v7a (GCC 4.8, Qt 5.7.0))
When executing step "Build Android APK"
Download Information
The preferred way of installing Necessitas suite is by using the Necessitas
SDK Installer-Framework for the following platforms:
GNU/Linux
(32/64)
M......
答案就在这里：安装qt for android开发环境
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