Qt 5.14.2-在Android项目中未找到Java类异常

我无法告诉QtCreator编译Java文件（如果我在Java文件中放入随机单词，项目将继续编译）。 结果是，在运行时，我尝试从C++调用类，它给了我CyrNoNojdExcPutto.<／P> 这是我的.pro文件

TEMPLATE = app

QT += quick
android {
  QT += androidextras
}

CONFIG += c++11 qtquickcompiler
CONFIG -= debug_and_release

RESOURCES += resources.qrc

DEFINES += QT_DEPRECATED_WARNINGS

#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

HEADERS += \
    android_gps_device.hpp

SOURCES += \
    main.cpp \
    android_gps_device.cpp

DISTFILES += \
    android/AndroidManifest.xml \
    android/gradle/wrapper/gradle-wrapper.jar \
    android/gradlew \
    android/res/values/libs.xml \
    android/build.gradle \
    android/gradle/wrapper/gradle-wrapper.properties \
    android/gradlew.bat \
    android/src/me/mycompany/gps/GpsDevice.java

contains(ANDROID_TARGET_ARCH,armeabi-v7a) {
    ANDROID_PACKAGE_SOURCE_DIR = \
        $$PWD/android
}

这是我的java文件：

package me.mycompany.gps;

import android.content.Context;
import android.location.LocationManager;

public class GpsDevice {
  static boolean isEnabled(Context context) {
    try {
      LocationManager locationManager = (LocationManager)getSystemService(LOCATION_SERVICE);
      return locationManager.isLocationEnabled();
    }
    catch(Exception e) {
      return false;
    }
  }
}

这是C++的一面：

#include <QtAndroid>
#include "android_gps_device.hpp"

AndroidGpsDevice::AndroidGpsDevice()
{
}

bool AndroidGpsDevice::enabled() const
{
  bool res = QAndroidJniObject::callStaticMethod<jboolean>("me/mycompany/gps/GpsDevice",
                                                           "isEnabled",
                                                           "(Landroid/content/Context;)Z",
                                                           QtAndroid::androidContext().object());

  return res;
}

#包括
#包括“android\u gps\u device.hpp”
AndroidGpsDevice:：AndroidGpsDevice（）
{
}
bool AndroidGpsDevice:：enabled（）常量
{
bool res=QAndroidJniObject:：callStaticMethod（“me/mycompany/gps/GpsDevice”，
“我被逮捕”，
“（Landroid/content/Context；）Z”，
QtAndroid:：androidContext（）.object（））；
返回res；
}

我做错了什么？ 多谢各位