App Engine multi sign in Error: Server Error

[Nick Cooper]

Hi,

For my app I'm using OAuth. I simply set the security constraint in
web.xml and then use the userService on the server side to get their
login credentials

It works really well, except I'm running into an issue when a user who
is currently logged into multiple google accounts tries to sign in

It correctly shows them the Google page to select which account to
login with, however no matter what they choose it directs them to /_ah/
conflogin where they get:

Error: Server Error

The server encountered an error and could not complete your request.
If the problem persists, please report your problem and mention this
error message and the query that caused it.


Has anybody run into this before?

Thanks,
Nick

[Zachary “Gamer_Z.” Yaro]

I have had that same issue for a while, but I have yet to find a solution :(

—Zachary “Gamer_Z.” Yaro

On Jul 6, 2012 9:02 PM, "John Pritchard" <john.dougla...@gmail.com> wrote:

Just started seeing this now -- across all apps 

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[radomir]

We have the same issue on multiple applications since March. 

I opened an issue that didn't get much attention. You may want to star it and add a comment that it affects OAuth also.

http://code.google.com/p/googleappengine/issues/detail?id=7048

On Saturday, July 7, 2012 3:14:28 AM UTC+2, Zachary Yaro wrote:

I have had that same issue for a while, but I have yet to find a solution :(

—Zachary “Gamer_Z.” Yaro

On Jul 6, 2012 9:02 PM, "John Pritchard" <john.douglas.pritchard@gmail.com> wrote:

Just started seeing this now -- across all apps 

On Tuesday, November 8, 2011 1:55:11 AM UTC-5, Nick Cooper wrote:

Hi,

For my app I'm using OAuth. I simply set the security constraint in
web.xml and then use the userService on the server side to get their
login credentials

It works really well, except I'm running into an issue when a user who
is currently logged into multiple google accounts tries to sign in

It correctly shows them the Google page to select which account to
login with, however no matter what they choose it directs them to /_ah/
conflogin where they get:

Error: Server Error

The server encountered an error and could not complete your request.
If the problem persists, please report your problem and mention this
error message and the query that caused it.


Has anybody run into this before?

Thanks,
Nick

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[John Pritchard]

It's either fixed, or doesn't come in until i have a larger number of multi-sign-on's.

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http://www.google.com/profiles/john.douglas.pritchard

[takanao ENDOH]

I got this error when logging in 4 accounts.

It works on logging in 3 accounts.

We can not control the number of accounts a user login at the same time.

I think it is a critical bug in the implementation of Google.

Conclusion, Users API is not usable. The only way is to use OAuth.