"Settings" app will crash immediately after open with clean Android 8 build (aosp_x86-eng) on emulator. logcat output is below:
--------- beginning of main
1536 1550 E memtrack: Couldn't load memtrack module
1536 1550 W android.os.Debug: failed to get memory consumption info: -1
--------- beginning of system
1536 1548 I ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.settings/.Settings (has extras)} from uid 10013
1373 2321 W audio_hw_generic: Not supplying enough data to HAL, expected position 926726 , only wrote 926722
2477 2477 W zygote : Unexpected CPU variant for X86 using defaults: x86
1536 1548 I ActivityManager: Start proc 2477:com.android.settings/1000 for activity com.android.settings/.Settings
2477 2477 I zygote : The ClassLoaderContext is a special shared library.
2477 2477 D OpenGLRenderer: HWUI GL Pipeline
2477 2477 W TileUtils: Found com.android.settings.backup.BackupSettingsActivity for intent Intent { act=com.android.settings.action.SETTINGS pkg=com.android.settings } missing metadata com.android.settings.category
2477 2477 D ConditionManager: conditions loading asychronously
2477 2496 D ConditionManager: loading conditions from xml
2477 2495 E BluetoothAdapter: Bluetooth binder is null
2477 2495 V NFC : this device does not have NFC support
1388 1836 E SurfaceFlinger: ro.sf.lcd_density must be defined as a build property
2477 2500 D SuggestionParser: Day 0 for com.android.settings.suggested.category.FIRST_IMPRESSION
2477 2495 D BatteryInfo: time to make batteryStatsHelper: 1ms
1536 1554 I WifiService: requestActivityInfo uid=1000
1536 1554 I WifiService: reportActivityInfo uid=1000
1536 1554 I WifiService: getSupportedFeatures uid=1000
1536 1606 W HalDeviceManager: isWifiStarted called but mWifi is null!?
2477 2500 I SuggestionParser: Use fingerprint requires unavailable feature android.hardware.fingerprint
1536 1554 E BluetoothAdapter: Bluetooth binder is null
1536 1554 E BatteryExternalStatsWorker: no controller energy info supplied for wifi
1536 1554 E KernelCpuSpeedReader: Failed to read cpu-freq: /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state (No such file or directory)
1536 1554 E BatteryExternalStatsWorker: modem info is invalid: ModemActivityInfo{ mTimestamp=0 mSleepTimeMs=0 mIdleTimeMs=0 mTxTimeMs[]=[0, 0, 0, 0, 0] mRxTimeMs=0 mEnergyUsed=0}
2477 2500 I SuggestionParser: Add another fingerprint requires unavailable feature android.hardware.fingerprint
2477 2495 D BatteryInfo: time for getStats: 10ms
2477 2500 W TileUtils: Found com.android.settings.backup.BackupSettingsActivity for intent Intent { act=com.android.settings.action.SETTINGS pkg=com.android.settings } missing metadata com.android.settings.category
1643 1852 D EGL_emulation: eglMakeCurrent: 0x945dab60: ver 2 0 (tinfo 0x945e4970)
1380 1380 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1540096
1380 1525 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1540096
2477 2499 D : HostConnection::get() New Host Connection established 0xa750eb00, tid 2499
2477 2499 I zygote : android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
2477 2499 I OpenGLRenderer: Initialized EGL, version 1.4
2477 2499 D OpenGLRenderer: Swap behavior 1
2477 2500 E SystemServiceRegistry: No service published for: wifip2p
2477 2500 E SystemServiceRegistry: android.os.ServiceManager$ServiceNotFoundException: No service published for: wifip2p
2477 2500 E SystemServiceRegistry: at android.os.ServiceManager.getServiceOrThrow(ServiceManager.java:75)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry$49.createService(SystemServiceRegistry.java:569)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry$49.createService(SystemServiceRegistry.java:567)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry$StaticServiceFetcher.getService(SystemServiceRegistry.java:987)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry.getSystemService(SystemServiceRegistry.java:914)
2477 2500 E SystemServiceRegistry: at android.app.ContextImpl.getSystemService(ContextImpl.java:1667)
2477 2500 E SystemServiceRegistry: at android.view.ContextThemeWrapper.getSystemService(ContextThemeWrapper.java:171)
2477 2500 E SystemServiceRegistry: at android.app.Activity.getSystemService(Activity.java:5915)
2477 2500 E SystemServiceRegistry: at com.android.settings.wfd.WifiDisplaySettings.isAvailable(WifiDisplaySettings.java:216)
2477 2500 E SystemServiceRegistry: at com.android.settings.SettingsActivity.doUpdateTilesList(SettingsActivity.java:845)
2477 2500 E SystemServiceRegistry: at com.android.settings.SettingsActivity.-wrap0(Unknown Source:0)
2477 2500 E SystemServiceRegistry: at com.android.settings.SettingsActivity$5.run(SettingsActivity.java:747)
2477 2500 E SystemServiceRegistry: at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
2477 2500 E SystemServiceRegistry: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
2477 2500 E SystemServiceRegistry: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
2477 2500 E SystemServiceRegistry: at java.lang.Thread.run(Thread.java:764)
1536 1548 W ActivityManager: Force finishing activity com.android.settings/.Settings
1536 1552 I ActivityManager: Showing crash dialog for package com.android.settings u0
It seems that crash is somehow related to WiFi, but Android emulator shouldn't have WiFi support anyway. What could be the issue here?
I managed to fix it myself. The problem seems to be due to com.android.settings.wfd.WifiDisplaySettings.isAvailable reporting that WiFi is available, while wifip2p service is absent. I went to WifiDisplaySettings.java:216 and replaced this check with false, so it won't try to locate the service. Now Settings can be opened properly.