[Building Sakai] Shibbolizing Sakai

[Natalia Stash]

Dear all, 

I am new to sakai dev list. 
We are trying to shibbolize sakai (v 2.7.0).
On the sakai start page we have a shibboleth login link
https://sakai.win.tue.nl/portal/login that redirects to https://sakai.win.tue.nl/sakai-login-tool/
but we get an error message 
HTTP Status 404 - /sakai-login-tool/.
The requested resource (/sakai-login-tool/) is not available.
I looked at the logs, they don't say anything like sakai-login-tool could not be deployed.
Has anyone had this kind of problem before?

Kind regards, 
Natasha.