我从 Android Studio 将相同的应用程序安装到不同的设备上，它已成功安装在所有设备上，但是在启动后，当我在某些设备上处理此应用程序内部存储中的文件时，出现以下错误：
E/java: [FileUploader] java.io.IOException: ioctl failed: EBADF (Bad file descriptor)
at libcore.io.IoBridge.available(IoBridge.java:74)
at java.io.FileInputStream.available(FileInputStream.java:108)
at packagename.FileUploader$1.contentLength(FileUploader.java:530)
at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:67)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at com.android.tools.profiler.agent.okhttp.OkHttp3Interceptor.intercept(OkHttp3Interceptor.java:57)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
at okhttp3.RealCall.execute(RealCall.java:77)
at packagename.performFileUploadRequest(FileUploader.java:483)
at packagename.FileUploader.performUploadRequestByType(FileUploader.java:429)
at com
11-16 11:45:03.138 20253-21432/packagename E/java: .packagename.FileUploader.tryUploadFileToServer(FileUploader.java:393)
at packagename.FileUploader.lambda$uploadFileToServer$2(FileUploader.java:302)
at packagename.-$$Lambda$FileUploader$MZ_TG9wHD8CqIUeh0jeiS8COakc.call(lambda)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:248)
at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:148)
at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:77)
at rx.observers.Subscribers$5.onNext(Subscribers.java:235)
at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276)
at rx.Subscriber.setProducer(Subscriber.java:211)
at rx.internal.operators.OnSubscribeMap$MapSubscriber.setProducer(OnSubscribeMap.java:102)
at rx.Subscriber.setProducer(Subscriber.java:205)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:48)
at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:33)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.
11-16 11:45:03.138 20253-21432/packagename E/java: java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.call(OperatorSubscribeOn.java:100)
at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230)
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:154)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: ioctl failed: EBADF (Bad file descriptor)
at libcore.io.Posix.ioctlInt(Native Method)
at libcore.io.ForwardingOs.ioctlInt(ForwardingOs.java:103)
at libcore.io.IoBridge.available(IoBridge.java:58)
... 60 more
同时，相同的应用程序可以在不同的设备上运行，没有这个例外。我在根设备上检查了它，即使发生此异常，文件夹中也存在 zip 文件data/data/packagename/files。异常点的代码如下（与 行fileStream.available()）：
RequestBody requestBody = new RequestBody() {
@Override
public MediaType contentType() {
return MediaType.parse(file.getMimeType());
}
@Override
public long contentLength() throws IOException {
return fileStream.available();
}
@Override
public void writeTo(BufferedSink sink) throws IOException {
Source source = null;
try {
source = Okio.source(fileStream);
sink.writeAll(source);
} finally {
Util.closeQuietly(source);
}
}
};
RequestBodyokhttp3 库中的抽象类在哪里。这个错误的原因是什么？
PS我还尝试安装此应用程序的apk，该应用程序是在其他计算机上构建的（我在我的计算机上使用adb安装它），它在处理这些文件时没有任何重大变化，并且它在相同的设备上无一例外地运行这个异常发生在哪里......所以它让我更加困惑......
PSS当我使用终端和gradlew任务而不是“运行”按钮在 Android Studio 中构建相同的应用程序时，该应用程序可以正常工作而不会出现此错误。所以这似乎是我的 Android Studio 的问题，但我什至无法想象到底是什么，这让我大吃一惊......