小编Ben*_* Ma的帖子

我正在尝试使用 FusedLocationProviderClient 和 Kotlin 协程请求一个新位置。这是我目前的设置：

class LocationProviderImpl(context: Context) : LocationProvider, CoroutineScope {

    private val TAG = this::class.java.simpleName

    private val job = Job()
    override val coroutineContext: CoroutineContext
        get() = job + Dispatchers.IO

    private val fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(context)
    private val locationRequest = LocationRequest().apply {
        numUpdates = 1
        priority = LocationRequest.PRIORITY_HIGH_ACCURACY
    }

    override suspend fun getLocation(): LatLng = suspendCoroutine {
        val locationCallback = object : LocationCallback() {
            override fun onLocationResult(result: LocationResult) {
                result.lastLocation.run {
                    val latLng = latitude at longitude
                    it.resume(latLng)
                }

                fusedLocationProviderClient.removeLocationUpdates(this) …

我正在尝试在模拟器中运行Flutter的示例应用程序。但是，当我尝试运行（通过Android Studio或通过命令行）时，出现以下异常：

Finished with error: ProcessException: Process 
"C:\android_projects\flutter_app\android\gradlew.bat" exited abnormally:
Exception in thread "main" java.lang.NullPointerException
at org.gradle.wrapper.BootstrapMainStarter.findLauncherJar(BootstrapMainStarter.java:34)
at 
org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:25)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
Command: C:\android_projects\flutter_app\android\gradlew.bat -v

当我运行扑扑医生时，一切都很好，我也接受了所有许可证。

欢迎任何帮助！