Caused by: libcore.io.ErrnoException: open failed: EACCES (P

最新推荐文章于 2023-10-22 08:53:04 发布
最新推荐文章于 2023-10-22 08:53:04 发布 · 676 阅读 · 0
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#移动开发

本文探讨了一款软件无法在Android设备的SDCARD中创建文件或文件夹的问题，并提供了可能的解决方案。当应用程序运行在system分区时，由于权限限制无法访问SDCARD。然而，在其他源码编译环境下，同样的软件却能正常访问SDCARD。

今天碰到一个奇葩的问题，写的软件不能再SDCARD里面写文件或者新建文件夹，弄了好久发现这里面有个网友回答出来了

http://www.dewen.org/q/4827/Android4.0%E4%B8%8D%E8%83%BD%E5%9C%A8SD%E5%8D%A1%E5%88%9B%E5%BB%BA%E7%9B%AE%E5%BD%95%3F

当应用程序是system时，不能访问SDCARD

为什么会这样呢？在另外的源码里面编译的该软件能够正常访问SDCARD！

更多答案：

http://www.eoeandroid.com/thread-63314-3-1.html

http://www.2cto.com/kf/201203/125636.html

iteye_12332
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Caused by: libcore.io.ErrnoException: open failed: EACCES (Permission denied)解决办法
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07-22 16:40:53.933 3600 5427 W System.err: Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied) 07-22 16:40:53.933 3600 5427 W System.err: at libcore.io.Linux.open(Native Method) 07-22 16:40:53.933 3600 5427 W System.err: at libcore.io.ForwardingOs.open(ForwardingOs.java:563) 07-22 16:40:53.933 3600 5427 W System.err: at libcore.io.BlockGuardOs.open(BlockGuardOs.java:274) 07-22 16:40:53.933 3600 5427 W System.err: at libcore.io.ForwardingOs.open(ForwardingOs.java:563) 07-22 16:40:53.933 3600 5427 W System.err: at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7851) 07-22 16:40:53.934 3600 5427 W System.err: at libcore.io.IoBridge.open(IoBridge.java:560)
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在 Android 应用开发中，当尝试访问外部存储中的文件时，可能会遇到 `android.system.ErrnoException: open failed: EACCES (Permission denied)` 错误。此问题通常由权限配置不当引起，尤其是在 Android 6.0（API ...
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E/UuidPersistStorage(1189): java.io.FileNotFoundException: /mnt/vendor/persist/device_uuid: open failed: EACCES (Permission denied) ``` 虽然最后 `D/UUID(1453)` 显示获取到了 UUID，但 **写入失败**。这...
11-24 04:57:56.911: I/ActivityManager(3607): Finished processing BOOT_COMPLETED for u0 11-24 04:57:56.913: D/CompatibilityChangeReporter(3607): Compat change id reported: 135634846; UID 10061; state: DISABLED 11-24 04:57:56.914: D/CompatibilityChangeReporter(3607): Compat change id reported: 143937733; UID 10061; state: ENABLED 11-24 04:57:56.914: E/UuidPersistStorage(3607): Failed to write UUID 11-24 04:57:56.914: E/UuidPersistStorage(3607): java.io.FileNotFoundException: /mnt/vendor/persist/device_uuid: open failed: EACCES (Permission denied) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at libcore.io.IoBridge.open(IoBridge.java:492) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at java.io.FileOutputStream.<init>(FileOutputStream.java:236) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at java.io.FileOutputStream.<init>(FileOutputStream.java:186) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at java.io.FileWriter.<init>(FileWriter.java:90) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at com.android.internal.os.UuidPersistStorage.getOrCreatePersistentUuid(UuidPersistStorage.java:53) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at com.android.server.os.UuidService.getOrCreatePersistentUuid(UuidService.java:24) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at android.os.IUuidService$Stub.onTransact(IUuidService.java:83) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at android.os.Binder.execTransactInternal(Binder.java:1154) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at android.os.Binder.execTransact(Binder.java:1123) 11-24 04:57:56.914: E/UuidPersistStorage(3607): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at libcore.io.Linux.open(Native Method) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at libcore.io.ForwardingOs.open(ForwardingOs.java:166) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:254) 11-24 04:57:56.914: E/UuidPersistStorage(3607): at libcore.io.IoBridge.open(IoBridge.java:478) 11-24 04:57:56.914: E/UuidPersistStorage(3607): ... 8 more 11-24 04:57:56.915: D/UUID(3862): Device UUID: 9ec29e0b-a9fd-453b-ab21-9b9b35b01555
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