null root returned by UiTestAutomationBridge when using uiAutomator

[srinivas...@gmail.com]

Hello,

Am getting an error while running the following command inside an ADB shell.

adb command: uiautomator dump /sdcard/dump.xml

ERROR: null root node returned by UiTestAutomationBridge.

This command will work occasionally, and then start failing and then work again, without having to reboot the device. 

This happens only on a device with Android P, and seems to be limited to the screens where there is an overlay 

(chrome open, and click on the menu button to bring up the menu options such as Print etc.) 

Tried ADB versions, 32,36 and 39. 

Thanks

Srinivas

[zhusha...@gmail.com]

We encountered the same issue， does anyone know how to fix it？

在 2018年6月29日星期五 UTC+8下午1:15:47，srinivas...@gmail.com写道：

[comom...@gmail.com]

Any update for this ,we meeting this issue , anyone know how to fix it?

Thanks.

srinivas...@gmail.com於 2018年6月29日星期五 UTC+8下午1時15分47秒寫道：

[hero1...@gmail.com]

Get same issue.

Same platform on Android O with same application, dump work well.

Same platform on Android P with same application, dump easily fail

[vishals...@gmail.com]

Any update on this issue, I am facing the same issue on Pixel 3 XL.

Sometime this command works, some time fails with the error "null root node returned by UiTestAutomationBridge."

--

Thanks

[Sushmi]

Hi I am facing same issue on LG Alpha device, anyone know how to fix this issue.

[jacko.9...@gmail.com]

Hi,

I'm having the same problem on a Xiaomi Pocophone F1 running the latest nightly of LineageOS 16 (also based on Android 9).

Best regards,
Jacko

[Uttara The little star]

Am getting an error while running the following command inside an ADB shell.

adb command: uiautomator dump /sdcard/dump.xml

ERROR: null root node returned by UiTestAutomationBridge.

This command will work occasionally, and then start failing and then work again, without having to reboot the device. 

I am getting the same error..Any updates.....