Re: [Lxr-dev] New database structure about to land

[Malcolm B. <ma...@br...>]

Hi all,

Robin Theander wrote:
> 
> Hi all,
> 
> Kristoffer Gleditsch wrote:
> > I run into the error mentioned in <200...@lu...>
> > pretty often: "** Fatal: Can't locate LXR/Lang/Generic.pm in @INC
> > (@INC contains: ...".  It's the same module it complains about every
> > time, but I'm not very familiar with mod_perl, so I don't know where
> > to start debugging it.
> 
> I have seen this as well. The lib/LXR stuff looked a bit odd to me and after I
> added a link LXR -> lib/LXR problems has gone away.

/me too ;-)

This is something that seems to occur on a maddeningly non-repeatable
basis.

> Is the lib directory in the way?

Interesting suggestion, but I don't think so.  The error I see is
usually for Generic.pm from somewhere in Common.pm.  The thing is,
Common.pm is in lib/LXR as well, so how did the script manage to find
Common.pm and then be unable to find lib/LXR/Lang?

As I understand the search mechanism in perl, first you replace the ::
with /, then search each directory in @INC for the file X/Y/Z.pm (for
module X::Y::Z).  So if you can find lib/LXR/Common.pm from LXR::Common,
surely you can find lib/LXR/Lang/Generic.pm from LXR::Lang::Generic? 
What makes things even stranger is that a reload of the page usually
clears the error - and I would have thought that a path error would be
permanent.

So this one has me flumoxed - I need to find some good ways to debug
mod_perl and track down what's going on.  Assistance welcome.

Malcolm