In the "Preferences" window select the "Security" tab. You can generate a new API key on the Google API Console. ClientIdLooksLikeKey Warning You may have supplied an API key in the client parameter. You can generate a new API key on the Google API Console. http://csimonitoring.com/error-message/enable-asp-error-messages.php
Web.config Enable Error Messages
If the user clicks the OK button, the window method prompt() will return the entered value from the text box. See Obtaining an API key. But you can keep it from appearing again. See Obtaining an API key.
Iis Enable Error Messages