自動化ガイド Diagnosing and resolving automation errors

 Unable to delete cookies. Please close all processes of the test browser and try again.

Unable to delete cookies. Please close all processes of the test browser and try again.

Error code: 0x80010504L

Problem

This happens because the browsers whose cookies are to be deleted is still open.

Solution

Close all instances of the browser, and then re-run the test.