Re: [web-devel] Yesod beginner

Can you add a Wiki page[1] with your install experiences? I'll link to it from the "five minutes" page. As for the sendmail issue: I'm actually going to need a backend for Amazon SES for sending email, so I'd like to get that written. (Any volunteers? Aristid already has a great aws package that should do most of the heavy lifting.[2]) There's also haskellnet which uses SMTP, but I haven't used it. Michael [1] http://www.yesodweb.com/page/wiki [2] http://hackage.haskell.org/package/aws On Thu, Jun 16, 2011 at 5:23 PM, anthropornis wrote:

(I forgot to mention earlier, I'm also new to Haskell, sorta starting with Yesod first to just get something running, then going on to learning Haskell, so I can get rid of a PHP CRUD interface for an existing db.)

I tried cabal install without any flags and it eventually worked.

Initially cabal yielded this error:    cabal: Error: some packages failed to install:    HDBC-postgresql-2.2.3.3 failed during the configure step. The exception was:    ExitFailure 1    persistent-postgresql-0.5.0 depends on HDBC-postgresql-2.2.3.3 which failed to install.    sample-0.0.0 depends on HDBC-postgresql-2.2.3.3 which failed to install.

Reading further up in the terminal output I saw something mentioned about one package needing to be installed for server side extensions, or libpq-dev needing to be installed for client side applications.

I took a chance that libpq-dev would be the right choice and installed it, then ran cabal install again, and this time it worked, and I was able to launch the dev server.

Viewing the page in my web browser I attempted to add an email login, but nothing happened. Switching back to the terminal it said sendmail needed to be installed. After installing sendmail I was able to create a login.

I had one question about sendmail. I noted somewhere else in your docs that I could possibly do something like Adobe AIR (?) and make an executable with Webkit in it as an offline version of the web app (which would be really cool, by the way).  I wasn't sure, if I put that executable on someone's Windows machine, is sendmail available for Windows or can the email pieces be switched with something other than sendmail if needed?

Thanks again

On 06/15/2011 10:52 PM, Michael Snoyman wrote:

...

On Thu, Jun 16, 2011 at 12:46 AM, anthropornis  wrote:

...

Hello,

I was following the "Yesod in Five Minutes Instructions" and I had a couple of bumps in the road.

The first one was when trying to do step 6, I get the following terminal output:    unrecognized option `--only-dependencies'

After ignoring that for the moment, I proceeded to trying to run the devel server and I get this terminal output:    yesod: user error (At least the following dependencies are missing:    persistent-postgresql ==0.5.*)

I'm guessing the second error may be related to the first, maybe persistent-postgresql was one of those dependencies that was supposed to be installed?

I did create the Postgres databases and user specified in the Yesod app config file.

I'm using this PPA on Ubuntu 11.04 64-bit, as the repo version of the Haskell Platform seems to be broken:    https://launchpad.net/~brcha/+archive/ppa

Thanks for any insight.

Try just plain "cabal install", the "--only-dependencies" is available in newer versions of the "cabal" tool. I'm going to remove it from the docs.

Michael