On the fourth step of the above mention project, when attampting to verify the step, I get the following error message:

There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: CLGFKBTJ

I've created three new developer orgs and I'm relatively certain I'm not doing anything wrong, but the error persists, although the error ID changes each time. I've seen others with this issue, but there doesn't seem to be a resolution. Any hints/direction/commiseration would be much appreciated. Thanks!

On the fourth step of the above mention project, when attampting to verify the step, I get the following error message:

There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: CLGFKBTJ

I've created three new developer orgs and I'm relatively certain I'm not doing anything wrong, but the error persists, although the error ID changes each time. I've seen others with this issue, but there doesn't seem to be a resolution. Any hints/direction/commiseration would be much appreciated. Thanks!