I just try (hard) to install Silverstripe.
After an OpenID issue, I'm now blocked with a HttpResponse error:

PHP Fatal error: Call to undefined method HttpResponse::isFinished() in sapphire/core/control/Controller.php on line 130

Any idea??
Thanks in advance!

I'm answering to myself (for people with the same problems):

- First of all, at the install step, it was always blocked at "Building database schema...". No errors, no info on forums, etc...
After manual researches (thanks PHP logs!), I've actually found that it was searching for something called "Auth/OpenID.php"... No information in the requirements about this, but I downloaded it here: http://openidenabled.com/files/php-openid/packages/php-openid-2.1.1.zip and the process went ahead!

- Second problem (this one), the installation seemed OK, but still a blank page on screen...
PHP logs again + debugging... and I understood that there was a conflict with the HTTP extension in our PHP installation (pecl_http).
In my case, I've just commented the extension in /etc/php5/conf.d/http.ini and then restarted Apache...

Everything seems to work now!

Hope it will help someone!
Grtz,
Clément.

Hi

I experienced exactly the same thing and I got my server admins to fix this.

It was one of the weirdest bugs ever seen.

got exactly the same. Even google knows this page for our site... not brillant.

Any solutions or cause to look forward ?

Sounds like the problem is due to ambiguous class name

HTTPResponse is also define in the HTTP Apache module.

I can't access my provided http conf. Is it possible to rename the class ( like SilverStripeHTTPResponse?

I found that it is in the bug DB refered as
http://open.silverstripe.com/ticket/2578
I manage to implement the changes and hope it will be included in a coming version!