Error 405

The complete error message, from reading a number of threads in Google Blogger Help, appears to be

HTTP method POST is not supported by this URL Error 405

What is the meaning of this message? Is this a peer error to the old friend (not)

We're sorry, but we were unable to complete your request.

Here's a sampling of reports. Some threads suffer from subject drift, some involve Blogger Employee, some may have just died. Who knows? I don't see it listed in Beta Known Issues, but it seems to come and go.

• Convert to Layout Started 9/24
  
• Can not access Blog Beta from cousin Started 9/18
  
• "We're sorry, but we were unable..."... Started 8/27 Massive thread drift, AND a celebrity appearance by Blogger Employee.
  
• BLOGGER BETA Started 8/16
  
• Blogger Beta Invite-Only Redirection Failed Started 8/15
  

If I omitted to list your favourite thread, please accept my apologies, and please let me know.

Corrupted Template?

This is the first noted reocurrent problem with Blogger Beta.

You may setup your Beta blog from scratch, or you may convert it from Alpha. And you can happily edit it - make posts, rearrange the layout, add page elements - for a while. Then you try to View Blog, and you see

We're sorry, but we were unable to complete your request.

Ongoing stories:

• We're sorry, but we were unable to complete your request. OPEN and CLOSED 8/23
• Guess What? OPEN and CLOSED 8/23
  
• We're sorry, but we were unable to complete your request. OPEN 8/23, containing very nice detective work by Nabeel.
  
• I lost my beta blogger blog while upgrading my old blogs! OPEN 8/22
  
• What happen to my blog?!?!?!??!?! OPEN 8/21 CLOSED 8/22
  
• We're sorry, but we were unable to complete your request. OPEN 8/20
  
• " We're sorry, but we were unable to complete your request." OPEN 8/20
• Upgraded to beta. One of my 3 blogs isn't showing on the net, the other 2 are fine. OPEN 8/19 CLOSED 8/22, though not pleasantly.
  
• Beta Blogger Borks Bob's Blog ! OPEN 8/19 CLOSED 8/20
  
• Error: Unable to complete your request OPEN 8/16

If you're lucky, this may involve a simple fix. Did you add syndicated feeds recently? It appears that bad feeds will cause this problem.

If removing feeds didn't solve your problem, you'll have to revert to the classic template.

• Under Template, select Edit HTML.
• Select REVERT TO CLASSIC TEMPLATE.

If this brings your blog back to visibility, that's a start. But, you will lose several desired features:

• Drag and drop layout editing.
• Labels.

So this is not a permanent solution. But work with us, maybe we can help diagnose the problem. And report the problem to Blogger Support (and don't forget to immediately reply to the botmail!).

(Edit 9/7): Beta Known Issues reports this as fixed.

(Edit 9/14): A new version of this error is occuring.