Emulator crashes in Android Studio due to invalid SDK root

[mairs8]

I am not able to run the Android Virtual Device emulator from Android Studio 2022.3.1.

The emulator crashes with message Cannot find valid sdk root path.

The emulator appears to be looking for the sdk root in /nix/store judging from the output of the crash log below.

what am I missing?

Steps to Reproduce

1. add android-nixpkgs to nixos machine via home-manager module below.
2. launch android-studio.
3. provide SDK Location: File -> Project Structure -> SDK Location -> enter /home/$USER/Android/Sdk.
4. add AVD: Tools -> Device Manager -> Create Device -> follow instructions to create Pixel_5_API_34 device.
5. launch emulator.
6. observe crash log output below in /home/$USER/.cache/Google/AndroidStudio2022.3/log/idea.log.

Failed Attempts to Fix

1. make local.properties read only and removing sdk.path value in the file per FAQ section.
2. Remove "Android SDK" element from ~/.config/Google/AndroidStudio{Version}/options/jdk.table.xml per FAQ section.
3. Set ANDROID_HOME and ANDROID_SDK_HOME environment variables to /home/$USER/Android/Sdk via the Android Studio terminal and .bashrc.

Android Studio Crash Log

INFO - #com.android.tools.idea.devicemanager.DeviceManagerAndroidDebugBridge - []
INFO - #com.android.sdklib.internal.avd.AvdManager - /home/$USER/.android/avd/Pixel_5_API_34.avd/hardware-qemu.ini.lock not found for Pixel_5_API_34
INFO - #com.android.sdklib.internal.avd.AvdManager - /home/$USER/.android/avd/Pixel_5_API_34.avd/userdata-qemu.img.lock not found for Pixel_5_API_34
WARN - #com.android.tools.idea.avdmanager.AvdManagerConnection - Unable to determine if Pixel_5_API_34 is online, assuming it's not
INFO - Emulator: Pixel 5 API 34 - /home/$USER/Android/Sdk/emulator/emulator -netdelay none -netspeed full -avd Pixel_5_API_34 -qt-hide-window -grpc-use-token -idle-grpc-timeout 300
INFO - Emulator: Pixel 5 API 34 - Storing crashdata in: /tmp/android-$USER/emu-crash-34.1.12.db, detection enabled for process: 21252
WARN - Emulator: Pixel 5 API 34 - ANDROID_SDK_ROOT is missing.
INFO - Emulator: Pixel 5 API 34 - Android emulator version 34.1.12.0 (build_id 11146273) (CL:N/A)
INFO - Emulator: Pixel 5 API 34 - checking ANDROID_HOME for valid sdk root.
WARN - Emulator: Pixel 5 API 34 - platforms subdirectory is missing under /nix/store, please install it
INFO - Emulator: Pixel 5 API 34 - checking ANDROID_SDK_ROOT for valid sdk root.
INFO - Emulator: Pixel 5 API 34 - emulator: WARN: Cannot find valid sdk root from environment variable ANDROID_HOME nor ANDROID_SDK_ROOT,Try to infer from emulator's path
WARN - Emulator: Pixel 5 API 34 - platforms subdirectory is missing under /nix, please install it
INFO - Emulator: Pixel 5 API 34 - guessed sdk root is /nix/store
WARN - Emulator: Pixel 5 API 34 - platforms subdirectory is missing under /, please install it
INFO - Emulator: Pixel 5 API 34 - guessed sdk root /nix/store does not seem to be valid
INFO - Emulator: Pixel 5 API 34 - guessed sdk root is /nix
WARN - Emulator: Pixel 5 API 34 - invalid sdk root /
INFO - Emulator: Pixel 5 API 34 - guessed sdk root /nix does not seem to be valid
INFO - Emulator: Pixel 5 API 34 - guessed sdk root is /
INFO - Emulator: Pixel 5 API 34 - PANIC: Cannot find AVD system path. Please define ANDROID_SDK_ROOT
INFO - Emulator: Pixel 5 API 34 - guessed sdk root / does not seem to be valid
INFO - Emulator: Pixel 5 API 34 - emulator: WARN: Cannot find valid sdk root path.
INFO - Emulator: Pixel 5 API 34 - Process finished with exit code 1
SEVERE - Emulator: Pixel 5 API 34 - Emulator terminated with exit code 1

android-sdk.nix

{ config, pkgs, lib, android-nixpkgs, system, inputs, ... }:

{
	imports = [ inputs.android-nixpkgs.hmModule ];
	
	nixpkgs.overlays = [ inputs.android-nixpkgs.overlays.default ];

	android-sdk.enable = true;

	# Optional; default path is "~/.local/share/android".
	android-sdk.path = "${config.home.homeDirectory}/Android/Sdk";

	android-sdk.packages = sdk: with sdk; [
	  build-tools-34-0-0-rc3
	  cmdline-tools-latest
	  emulator
	  platform-tools
	  platforms-android-34
	  sources-android-34
	  system-images-android-34-google-apis-x86-64
	];

}

[mairs8]

@tadfisher is there any update on this? I feel like there is something obvious I'm missing given it's such a basic error but no one else has raised.

[igor-ramazanov]

@mairs8 From your logs:

WARN - Emulator: Pixel 5 API 34 - ANDROID_SDK_ROOT is missing.
...
INFO - Emulator: Pixel 5 API 34 - checking ANDROID_HOME for valid sdk root.
...
INFO - Emulator: Pixel 5 API 34 - checking ANDROID_SDK_ROOT for valid sdk root.
...
INFO - Emulator: Pixel 5 API 34 - emulator: WARN: Cannot find valid sdk root from environment variable ANDROID_HOME nor ANDROID_SDK_ROOT,Try to infer from emulator's path
...
INFO - Emulator: Pixel 5 API 34 - PANIC: Cannot find AVD system path. Please define ANDROID_SDK_ROOT

[mairs8]

@igor-ramazanov I don't think it is this. From the official android studio docs.

"ANDROID_SDK_ROOT, which also points to the SDK installation directory, is deprecated."

Also Android studio doesn't seem to respect the enviroment variables i am setting in my .bashrc anyway.

[igor-ramazanov]

@mairs8

It could depend on the shell you use to launch the app. If it's sh, bash or something else.

New processes won't see .bashrc env vars if they started through the sh.

It's reasonable to check in the settings if Android Studio was able to locate the Android SDK.

[igor-ramazanov]

For example, if you launch the Android Studio as a desktop app, then what is inside the Exec=… statement of the accosiated .desktop file?

[mairs8]

@igor-ramazanov so the issue appears to be with one of the files in the tadfisher sdk. Would you be able to do me a favour and check in your android-nixpkgs sdk the file [your-sdk-location]/emulator/emulator. Is this a plain text symlink file, or is it an executable?

When I look at the official sdk downloaded by android studio the emulator/emulator file is an executable. however in android-nixpkgs, this is a text file pointing to .emulator-wrapped. This single file is causing my avd to crash. the question is, why is it only crashing on my machine and not others?

Contents of emulator/emulator.txt:

#! /nix/store/q8qq40xg2grfh9ry1d9x4g7lq4ra7n81-bash-5.2-p21/bin/bash -e
export QT_QPA_PLATFORM='xcb'
LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+':'$LD_LIBRARY_PATH':'}
LD_LIBRARY_PATH=${LD_LIBRARY_PATH/':''/nix/store/iidxwcyp8pqhrq3iji17shs4m6gin0kv-systemd-254.6/lib'':'/':'}
LD_LIBRARY_PATH='/nix/store/iidxwcyp8pqhrq3iji17shs4m6gin0kv-systemd-254.6/lib'$LD_LIBRARY_PATH
LD_LIBRARY_PATH=${LD_LIBRARY_PATH#':'}
LD_LIBRARY_PATH=${LD_LIBRARY_PATH%':'}
export LD_LIBRARY_PATH
LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+':'$LD_LIBRARY_PATH':'}
LD_LIBRARY_PATH=${LD_LIBRARY_PATH/':''/nix/store/jnlxl2ry9y03vq4skhm26igfd84xwa93-dbus-1.14.10-lib/lib'':'/':'}
LD_LIBRARY_PATH='/nix/store/jnlxl2ry9y03vq4skhm26igfd84xwa93-dbus-1.14.10-lib/lib'$LD_LIBRARY_PATH
LD_LIBRARY_PATH=${LD_LIBRARY_PATH#':'}
LD_LIBRARY_PATH=${LD_LIBRARY_PATH%':'}
export LD_LIBRARY_PATH
LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+':'$LD_LIBRARY_PATH':'}
LD_LIBRARY_PATH=${LD_LIBRARY_PATH/':''/nix/store/53ch4im2ziqjjhr08fphwxkclkqmrqkp-libudev0-shim-1/lib'':'/':'}
LD_LIBRARY_PATH='/nix/store/53ch4im2ziqjjhr08fphwxkclkqmrqkp-libudev0-shim-1/lib'$LD_LIBRARY_PATH
LD_LIBRARY_PATH=${LD_LIBRARY_PATH#':'}
LD_LIBRARY_PATH=${LD_LIBRARY_PATH%':'}
export LD_LIBRARY_PATH
export QT_XKB_CONFIG_ROOT='/nix/store/vrybs7z641yn0qkk4g9h8q5waxa9ljlp-xkeyboard-config-2.40/share/X11/xkb'
export QTCOMPOSE='/nix/store/y8f8j7nb52l30cg8x0clk9k91fpi224v-libX11-1.8.7/share/X11/locale'
exec -a "$0" "/nix/store/vdrgqk9mwqzpg89b5yvkfzf3xy87g05a-emulator-34.2.1/.emulator-wrapped" "$@"