Failed to run android

why this error when I dont have apk in my tab

Failure [INSTALL_FAILED_VERSION_DOWNGRADE]

You're trying to install apk with a lower versionCode that is already installed.
Either uninstall an app or increment the versionCode.

[ERROR] An error occurred while running cordova run android (exit code 1).

maybe just try to delete apk from your mobile?

Did you search your apps to make sure the old one is uninstalled?
I usually get this if I forget to uninstall the app-store version before running a test build

@FnnHuman @beck24

was working fine till yesterday even if app is there but now dont know and when I checked from another PC its running without any issue

so do what we have told you

ya its working after deleting but there must be something which will replace app without this issue