Mac端Android Studio运行应用报Permission denied问题求助

问题表现 #

同项目代码、同版本Android Studio，Windows环境运行可正常加载数据，Mac环境运行触发权限拒绝异常，网络请求失败。

核心报错日志 #

Late-enabling -Xcheck:jni
E/ample.inclass0: Unknown bits set in runtime_flags: 0x8000
W/ample.inclass0: Unexpected CPU variant for X86 using defaults: x86
D/libEGL: Emulator has host GPU support, qemu.gles is set to 1.
W/RenderThread: type=1400 audit(0.0:660): avc: denied { write } for name="property_service" dev="tmpfs" ino=857 scontext=u:r:untrusted_app:s0:c151,c256,c512,c768 tcontext=u:object_r:property_socket:s0 tclass=sock_file permissive=0
W/libc: Unable to set property "qemu.gles" to "1": connection failed; errno=13 (Permission denied)
D/libEGL: loaded /vendor/lib/egl/libEGL_emulation.so
D/libEGL: loaded /vendor/lib/egl/libGLESv1_CM_emulation.so
D/libEGL: loaded /vendor/lib/egl/libGLESv2_emulation.so
W/ample.inclass0: Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (greylist, reflection, allowed)
W/ample.inclass0: Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (greylist, reflection, allowed)
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
W/System.err: java.net.SocketException: socket failed: EPERM (Operation not permitted)
W/System.err:     at java.net.Socket.createImpl(Socket.java:492)
W/System.err:     at java.net.Socket.getImpl(Socket.java:552)
W/System.err:     at java.net.Socket.setSoTimeout(Socket.java:1180)
W/System.err:     at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.kt:293)
W/System.err:     at okhttp3.internal.connection.RealConnection.connect(RealConnection.kt:207)
W/System.err:     at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:226)
W/System.err:     at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:106)
W/System.err:     at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:74)
W/System.err:     at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.kt:255)
W/System.err:     at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:32)
W/System.err:     at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
W/System.err:     at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:95)
W/System.err:     at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
W/System.err:     at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83)
W/System.err:     at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
W/System.err:     at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76)
W/System.err:     at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
W/System.err:     at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:201)
W/System.err:     at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:517)
W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
W/System.err:     at java.lang.Thread.run(Thread.java:919)
D/HostConnection: HostConnection::get() New Host Connection established 0xdb7e2040, tid 5252
D/HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_YUV420_888_to_NV21 ANDROID_EMU_YUV_Cache ANDROID_EMU_sync_buffer_data GL_OES_EGL_image_external_essl3 GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_3_0 
W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
D/eglCodecCommon: setVertexArrayObject: set vao to 0 (0) 0 0
D/EGL_emulation: eglCreateContext: 0xf1f7e5c0: maj 3 min 0 rcv 3
D/EGL_emulation: eglMakeCurrent: 0xf1f7e5c0: ver 3 0 (tinfo 0xe6d24dd0)
W/Gralloc3: mapper 3.x is not supported
D/HostConnection: createUnique: call
D/HostConnection: HostConnection::get() New Host Connection established 0xdb7e3800, tid 5252
D/HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_YUV420_888_to_NV21 ANDROID_EMU_YUV_Cache ANDROID_EMU_sync_buffer_data GL_OES_EGL_image_external_essl3 GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_3_0 
D/eglCodecCommon: allocate: Ask for block of size 0x1000
D/eglCodecCommon: allocate: ioctl allocate returned offset 0x3ff807000 size 0x2000
D/EGL_emulation: eglMakeCurrent: 0xf1f7e5c0: ver 3 0 (tinfo 0xe6d24dd0)
D/eglCodecCommon: setVertexArrayObject: set vao to 0 (0) 1 0

已验证无效的操作 #

• 已在AndroidManifest.xml中配置网络权限，配置内容如下：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.example.inclass07">

    <uses-permission android:name="android.permission.INTERNET"></uses-permission>

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.InClass07"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

• 删除Manifest中tools:targetApi="31"配置后重新运行，问题未解决

排查方案（按解决概率从高到低排序） #

核心报错java.net.SocketException: socket failed: EPERM (Operation not permitted)属于Mac端Android模拟器环境异常，和业务代码、Manifest配置无关，按以下顺序尝试：

• 方案1：重置模拟器状态
  1. 卸载模拟器内当前安装的测试应用，清除模拟器中该应用的所有缓存、存储数据
  2. 打开Android Studio的Device Manager，找到当前使用的模拟器，点击右侧下拉菜单选择Cold Boot Now执行冷启动，不要使用快照快速启动
  3. 重新构建安装应用，90%以上的同类问题可通过该步骤解决
• 方案2：排查网络拦截问题
  1. 检查Mac系统是否运行了网络代理、抓包工具（Clash、Surge、Charles、Little Snitch等），这类工具可能拦截模拟器的Socket请求触发权限错误，暂时关闭这类工具后重试
  2. 打开模拟器的系统设置-网络和互联网，确认WLAN处于开启状态，且没有配置无效的代理地址
• 方案3：重建模拟器
  如果当前使用的是x86架构的模拟器，直接删除该AVD，新建一个x86_64架构、API级别和之前一致的模拟器，重新运行项目即可，旧模拟器的快照缓存损坏也会触发该问题
• 方案4：修复本地文件权限
  打开Mac终端执行以下命令，为Android模拟器目录开放读写权限，之后重启Android Studio重试：

  chmod -R 755 ~/.android/avd/
  

日志中出现的avc: denied { write } for name="property_service"是模拟器自身的SELinux系统警告，属于模拟器通用日志，和本次应用报错无关，不需要针对该日志修改业务代码。

内容的提问来源于stack exchange，提问作者Michael