Trouble:

	无法启动android模拟器，提示

	XDM authorization key matches an existing client!

	SDL init failure, reason is: No available video device

Oneway:

	打开电脑的 Terminal 终端，

	以当前图形界面用户的身份执行命令

	xhost localhost

	即可,如果想实现登录后自动执行这个命令，可以做以下操作

	点开 Applicantions Menu -> Settings -> Session and Startup

	在打开的选项中点击 Application Autostart

	然后点击左下方的 Add 按钮，

	设置Name的值为：xhost localhost

	设置Description的值为：xhost localhost

	设置Command的值为：xhost localhost

	点击OK，点击Close，即可

Trouble:

	无法启动android模拟器，提示

	emulator: ERROR: x86 emulation currently requires hardware acceleration!

	Please ensure KVM is properly installed and usable.

	CPU acceleration status: This user doesn't have permissions to use KVM (/dev/kvm).

	或者提示

	emulator: ERROR: x86 emulation currently requires hardware acceleration!

	Please ensure KVM is properly installed and usable.

	CPU acceleration status: Could not open /dev/kvm :Permission denied

Oneway:

	使用 root 权限执行以下三条命令后注销当前用户或者直接重启电脑即可

	(本例子中当前登录图形界面的用户是 sman)

	

	groupadd kvm

	usermod -G kvm -a sman

	echo 'KERNEL=="kvm",GROUP="kvm",MODE="0660"' >> /etc/udev/rules.d/androidUseKVM.rules

	

	这三条命令的作用分别是：

	#创建用户组kvm

	#将用户sman添加到kvm用户组

	#开机时自动赋予用户组kvm拥有0660的权限

Trouble:

	无法启动android模拟器，提示

	Android/Sdk/tools/emulator -netdelay none -netspeed full -avd Nexus_5_API_23

	libGL error: failed to load driver: i965

	libGL error: Try again with LIBGL_DEBUG=verbose for more details.

	failed to create drawable

	getGLES1ExtensionString: Could not create GLES 1.x Pbuffer!

	Failed to obtain GLES 1.x extensions string!

	Could not initialize emulated framebuffer

Oneway:

	根据提示在Terminal中申明环境变量并在Terminal中启动模拟器

	export LIBGL_DEBUG=verbose; Android/Sdk/tools/emulator -netdelay none -netspeed full -avd Nexus_5_API_23

	得到提示：

	libGL: OpenDriver: trying /usr/lib64/xorg/modules/dri/i965_dri.so

	libGL error: failed to open drm device: Permission denied

	libGL error: failed to load driver: i965

	libGL: OpenDriver: trying /usr/lib64/xorg/modules/dri/swrast_dri.so

	libGL: OpenDriver: trying /usr/lib64/xorg/modules/dri/i965_dri.so

	libGL error: failed to open drm device: Permission denied

	libGL error: failed to load driver: i965

	libGL: OpenDriver: trying /usr/lib64/xorg/modules/dri/swrast_dri.so

	failed to create drawable

	getGLES1ExtensionString: Could not create GLES 1.x Pbuffer!

	Failed to obtain GLES 1.x extensions string!

	Could not initialize emulated framebufferSegmentation fault

	先解决第一个错误，第一个错误是没有权限使用drm设备

	于是使用groups命令检查当前用户是否存在于video用户组

	[sman@mnxnm:~]$ groups

	users plugdev vboxusers kvm

	可以看到sman不属于video用户组

	于是使用root权限将当前用户sman添加到video用户组

	root@mnxnm:~# usermod -G video -a sman

	注销当前用户再重新登录(必须重新登录，否则用户组改动不会生效)

	登录后确认sman是否成功加入video用户组

	[sman@mnxnm:~]$ groups

	users video plugdev vboxusers kvm

	可以看到sman成功加入video用户组

	再启动Android studio，再通过Android Virtual Device Manager启动模拟器

	看看错误有没有消除

	如果提示NAND: could not write file /tmp/android-sman/emulator-7UY28S, File exists

	则 rm /tmp/android-sman/emulator-* 后再试

	OK，成功启动模拟器

Trouble:

	android模拟器中DNS解析正常但无法ping通外网

Oneway:

	这是正常现象，因为模拟器与PC之间的网络通信是通过TCP端口转发来实现的

	而ping是ICMP数据包，没有端口，故模拟器无法将ping请求送出

	但是是可以正常浏览网页的

	所以不能用ping来测试模拟器是否能够联网，而是用网页浏览器来测试

Trouble:

	android模拟器中安装调试apk时出错，提示

	Application Installation Failed

	Installation failed with message INSTALL_FAILED_CONTAINER_ERROR.

	It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing.

	WARNING: Uninstalling will remove the application data!

	Do you want to uninstall the existing application?

Oneway:

	方法一：adb root

		adb shell rm /mnt/secure/asec/smdl*

	方法二：将项目源文件 AndroidManifest.xml 中的

		android:installLocation="preferExternal"

		修改成

		android:installLocation="auto"

		即可

巴特西

【转】android开发中关于模拟器emulation的常见问题

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