首先代码被编译成so，然后下面ant编译就不动了日志如下：
copy /y libfirstAndroidHelloWorld.so H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\libs\armeabi-v7a\libfirstAndroidHelloWorld.so
已复制 1 个文件。
22:24:39: 进程"H:\Qt\Qt5.7.1\Tools\mingw530_32\bin\mingw32-make.exe"正常退出。
22:24:39: Starting: "H:\Qt\Qt5.7.1\5.7\android_armv7\bin\androiddeployqt.exe" --input H:/QML/build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release/android-libfirstAndroidHelloWorld.so-deployment-settings.json --output H:/QML/build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release/android-build --deployment bundled --android-platform android-25 --jdk C:/JDK/jdk1.6.0_18 --ant C:/apache-ant-1.9.8/bin/ant.bat
Generating Android Package
Input file: H:/QML/build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release/android-libfirstAndroidHelloWorld.so-deployment-settings.json
Output directory: H:/QML/build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release/android-build/
Application binary: H:/QML/build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release/libfirstAndroidHelloWorld.so
Android build platform: android-25
Install to device: No
Buildfile: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\build.xml
-set-mode-check:
-set-debug-files:
-check-env:
[checkenv] Android SDK Tools Revision 25.2.4
[checkenv] Installed at C:\android-sdk
-setup:
[echo] Project Name: QtApp
[gettype] Project Type: Application
-set-debug-mode:
-debug-obfuscation-check:
-pre-build:
-build-setup:
[getbuildtools] Using latest Build Tools: 25.0.2
[echo] Resolving Build Target for QtApp...
[gettarget] Project Target: Android 7.1.1
[gettarget] API level: 25
[echo] ----------
[echo] Creating output directories if needed...
[mkdir] Created dir: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\bin
[mkdir] Created dir: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\bin\res
[mkdir] Created dir: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\bin\rsObj
[mkdir] Created dir: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\bin\rsLibs
[mkdir] Created dir: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\gen
[mkdir] Created dir: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\bin\classes
[mkdir] Created dir: H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\bin\dexedLibs
[echo] ----------
[echo] Resolving Dependencies for QtApp...
[dependency] Library dependencies:
[dependency] No Libraries
[dependency]
[dependency] ------------------
[echo] ----------
[echo] Building Libraries with 'debug'...
[subant] No sub-builds to iterate on
-code-gen:
[mergemanifest] Merging AndroidManifest files into one.
[mergemanifest] Manifest merger disabled. Using project manifest only.
[echo] Handling aidl files...
[aidl] Found 2 AIDL files.
[aidl] Compiling 2 AIDL files.
[echo] ----------
[echo] Handling RenderScript files...
[echo] ----------
[echo] Handling Resources...
[aapt] Generating resource IDs...
[echo] ----------
[echo] Handling BuildConfig class...
[buildconfig] Generating BuildConfig class.
-pre-compile:
-compile:
[javac] Compiling 10 source files to H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\bin\classes
[javac] H:\QML\build-firstAndroidHelloWorld-Android_for_armeabi_v7a_GCC_4_8_Qt_5_7_1-Release\android-build\src\org\qtproject\qt5\android\bindings\QtActivity.java:39: 无法访问 android.app.Activity
[javac] 错误的类文件： android\app\Activity.class(android\app:Activity.class)
[javac] 类文件具有错误的版本 52.0，应为 50.0
[javac] 请删除该文件或确保该文件位于正确的类路径子目录中。
[javac] import android.app.Activity;
[javac] ^
BUILD FAILED
C:\android-sdk\tools\ant\build.xml:716: The following error occurred while executing this line:
C:\android-sdk\tools\ant\build.xml:730: Compile failed; see the compiler error output for details.
Total time: 1 second
Building the android package failed!
-- For more information, run this command with --verbose.
22:24:45: 进程"H:\Qt\Qt5.7.1\5.7\android_armv7\bin\androiddeployqt.exe"退出，退出代码 14 。
Error while building/deploying project firstAndroidHelloWorld (kit: Android for armeabi-v7a (GCC 4.8, Qt 5.7.1))
When executing step "Build Android APK"
22:24:45: Elapsed time: 00:07.
