Appium 1.20: Selecting by Locator Strategy ID fails, specifying resource-id without package name

The problem

After updating to Appium 1.20, we faced an issue on Android, that locators with ID strategy don’t work anymore, returning next error:

[elements("id","logo")] Error response status: 13, , UnknownError - An unknown server-side error occurred while processing the command. Selenium error: An unknown server-side error occurred while processing the command. Original error: Cannot rewrite element locator 'logo' to its complete form, because the current application package name is unknown. Consider providing the app package name or changing the locator to '<package_name>:id/logo' format.

At the same time, having our app active, we can successfully get current package name, so it’s being resolved without problems.

Also, locator strategy works fine if specifying ID in complete form

We have lot of locators which use ID strategy and not specifying them in complete form, as we need to support tests for different package names.

Environment

• Appium version (or git revision) that exhibits the issue: Appium 1.20
• Last Appium version that did not exhibit the issue (if applicable): Appium 1.19.1
• Desktop OS/version used to run Appium: Mac OS X | 10.15.7 | 19H114
• Node.js version (unless using Appium.app|exe): v14.12.0
• Npm or Yarn package manager: NPM 6.14.8
• Mobile platform/version under test: Android 10 API 29
• Real device or emulator/simulator: Samsung Galaxy S10e
• Appium CLI or Appium.app|exe: Appium.app

Details

If necessary, describe the problem you have been experiencing in more detail.

Link to Appium logs

Appium log with error Full Appium log

Code To Reproduce Issue [ Good To Have ]

[mykola-mokhnach]

Appium 1.20.1 containing the patch has been released

[mykola-mokhnach]

Published the fix to appium@beta. Thanks for testing it