Got an error: 'GET /appium/device/pixel_ratio' cannot be proxied to UiAutomator2 server

[maksimsarychau]

Log with details:

org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: 'GET /appium/device/pixel_ratio' cannot be proxied to UiAutomator2 server because the instrumentation process is not running (probably crashed). Check the server log and/or the logcat output for more details[[[--udid RF8NA0A841E --name Galaxy_S20 --sessionId 08e9d8f6-3b44-4d6a-b89a-c36ace499c1a]]]
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:17:03'
System info: host: 'ip-172-31-45-161.eu-central-1.compute.internal', ip: '172.31.45.161', os.name: 'Linux', os.arch: 'amd64', os.version: '4.14.276-211.499.amzn2.x86_64', java.version: '11.0.12'
Driver info: driver.version: AndroidDriver
remote stacktrace: UnknownError: An unknown server-side error occurred while processing the command. Original error: 'GET /appium/device/pixel_ratio' cannot be proxied to UiAutomator2 server because the instrumentation process is not running (probably crashed). Check the server log and/or the logcat output for more details[[[--udid RF8NA0A841E --name Galaxy_S20 --sessionId 08e9d8f6-3b44-4d6a-b89a-c36ace499c1a]]]
at UIA2Proxy.command (/usr/lib/node_modules/appium/node_modules/appium-base-driver/lib/jsonwp-proxy/proxy.js:274:13)

[vdelendik]

let's monitor how its going in 2.0 and if necessary add extra verification. it might be useful to inject one more verification in between startus-adb and uiautomator2 start

[vdelendik]

closing as can't reproduce in 2.0.x appium