Issue
The error you will see is:
Error while constructing application from git repo
backend stdout | com.appsmith.external.exceptions.pluginExceptions.AppsmithPluginException: Provided the file format is incompatible, please upgrade your instance to resolve this conflict.Resolution
This error means the app being imported was developed on a higher version of Appsmith than where it is being imported. You should upgrade the latest instance to the latest version and try to import again.