Yarko, thanks for detailed description, but it's not a problem.

If there were no parameters_xxx.py file, I could not log in admin
interface. The problem is, that I can log in, but admin is unable to
create new application.

At the end of setup-web2py-ubuntu.sh file we can find:
    cd /home/www-data/web2py
    sudo -u www-data python -c "from gluon.main import save_password;
save_password(raw_input('admin passw
ord: '),443)"
This line asks for password and writes it in parameters_443.py file.

Running ./web2py creates: deposit/, site-package/, parameters_8000.py
and welcome.w2p
(BTW: As you can see default port is 8000)

Looks like as long as you don't run ./web2py, admin can't find
welcome.w2p to scaffold.

On Mar 29, 5:27 pm, Yarko Tymciurak <resultsinsoftw...@gmail.com>
wrote:
> On Mar 29, 9:27 am, ciastek <ciasteczk...@gmail.com> wrote:
>
> > I've had the same problem ("unable to create application") on Ubuntu
> > JeOS 8.04.3 configured as shown athttp://vimeo.com/10377947[
> > web2py production deployment on vps.net (VIDEO) by mdipierro].
> > Ubuntu fully upgraded, web2py installed using setup-web2py-ubuntu.sh
> > script.
> > Running web2py from console once, resolved the problem.
>
> Just to be sure there is not mystery / this is clear:
>
> When you start web2py from the console with no arguments, you are
> asked to config various things (port, admin password);
> You can also do this from the command line (in which case, no config-
> gui comes up prior to starting the built-in server).
>
> When you run from other than the built-in server, there is no setup:
> the port and admin password must exist _somewhere_!
>
> The way you create this information is to run from the console "once"
> - because what this does is create a file:
> parameters_{port_number}.py, which is then used at startup.
>
> So (for example):
>
>     $ python web2py.py -a 'hello'
>
> will create  parameters_80.py   (the default port is 80).
>
> You can edit, or copy this file - if you want to use the same
> password, but on port 432, just copy this file (for example) to:
> parameters_432.py
>
> In any case, the parameters file is used to supply "command-line"
> parameters when not running from the command line.
>
> Hope this takes the mystery out of it.
>
> Regards,
> Yarko
>
> > IMHO the source of problem is absence of web2py/deposit and web2py/
> > site-packages directories.
> > mdipierro - web2py rox! :)
> > -- ciastek
>
> > On Mar 22, 4:01 am, KMax <mkostri...@gmail.com> wrote:
>
> > > Hello
> > >   My web2py instalation (1.73 and newer) was affected by the same
> > > issue.
> > >   Running on debian by wsgi apache2. Installed by unzipping
> > > web2py_src.zip in to fresh folder and coping parameters_443.py.
> > >   Creation of newapplicationgive an error flash 
> > > "unabletocreateapplication."
>
> > >   Workaround was found accidently.
> > >   Starting web2py.by at console ( typing pass and quit ) solve issue
> > > at apache.
>
> > > Thank you.
> > > On 3 ÍÁÒ, 00:13, snfctech <tschm...@sacfoodcoop.com> wrote:
>
> > > > Fedora10 web2py1.76.1 apache2/mod_wsgi
>
> > > > I thought all errors generated tickets? šWhen I try tocreatean app
> > > > via the admin over HTTPS on a LAN all I get is an error flash "unable
> > > > tocreateapplication." šIt's not an apache permission issue because
> > > > it does the same thing if all my files and dirs have 777 permissions.
> > > > I don't get any apache errors in the error log and the only funny
> > > > thing I get in the access log is a 303 code from the POST request to
> > > > admin/default/site. šSomething must not be working out with
> > > > gluon.admin.app_create.
>
> > > > How should I troubleshoot this type of error, or does anybody have an
> > > > idea what's going on?
>
> > > > I'm going to start dissecting the app_create function - but my python
> > > > skills are still pretty weak and I was hoping there would just be a
> > > > good error log somewhere...
>
> > > > Thanks in advance for any tips.

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