[Old Thread] Problem installing on Ubuntu Linux

[bgcamroux]

Hello,

I'm running Crunchbang Linux on my Asus EeePC, and am attempting to get Calibre installed and running. When I use the command line python script,

sudo python -c "import urllib2; exec urllib2.urlopen('http://status.calibre-ebook.com/linux_installer').read(); main()"

I get the following:

Enter the installation directory for calibre [/opt]: 
Will download and install calibre-0.7.33-i686.tar.bz2
                    Downloading calibre-0.7.33-i686.tar.bz2                     
100% [======================================================================]
                                                                                Downloaded 42569064 bytes
Checking downloaded file integrity...
Extracting files to /opt/calibre ...
Extracting application files...
Traceback (most recent call last):
  File "site.py", line 48, in main
  File "site.py", line 37, in set_qt_plugin_path
ImportError: cannot import name QCoreApplication

Run "calibre" to start calibre
brad@bgc-eee:/opt$

Any idea what I can do to fix this? I cannot find where site.py is located in the install tree

I really want to get going with using Calibre - it'd be great for managing school documents as well as ebooks.

Thank you,

Brad Camroux

[kovidgoyal]

this will be caused by some missing/conflicting system library. Do this this to get debug output about which library:

LD_DEBUG=libs calibre-debug -c "print 1" 2>&1 | less

SCroll through the resulting output till you find the errors

[wahid]

Hi Kovid and Brad,

I've been googling for the same error message "ImportError: cannot import name QCoreApplication" and for the same reasons, as I came across your thread.

I have a Debian Lenny 5.0.8 Server and would like to deploy my Calibre-Library onto it. After I read about the "calibre-server" feature, I was more excited.

So first I should first to ensure that my system fulfills the prequisites. Specially the GLIBC. I checked through Aptitude and found a preinstalled one "libc6 Version: 2.7-18lenny7". So I was in doubt, since the version no. is totally different from the requested noted. Anyway I execute

python -c "import urllib2; exec urllib2.urlopen('http://status.calibre-ebook.com/linux_installer').read(); main()

and get exactly the same errors mentioned by Brad.

@Kovid
At this step, it's still not possible to run any calibre-command.

@Brad
did you find meanwhile a solution to this?

Greetings
Wahid

[Sardog]

Any update on this thread... I am trying to get calibre working on Debian Lenny and I am not having any luck getting past this error. I find it strange that I can have calibre working just fine instantly on Windows XP and on a portable stick but can't get it to work on Lenny. I am not an a "compile from source" kinda guy but I can download and move around files. I would be willing to bet that my problem is with the glibc that keeps getting thrown around in the forums but I don't see a step by step guide to installing calibre on lenny and getting it running properly. If anyone has any help on this please let me know.

[chaley]

Calibre won't install on stock lenny. The glibc libraries are too old. You need squeeze.

I made it work quite some time ago by creating a chroot'ed partition, installing sid (squeeze didn't yet exist) libraries into that partition, then installing calibre. This was a royal bother and in the end I gave it up, but if you want to go down that road, then see https://www.mobileread.com/forums/sho...92#post1185292.

You could also go the backport route to get the newer glibc. The problem is that glibc is used by *everything*. I started down this route and came close to bricking my server, so I don't recommend it. Better would be to upgrade to squeeze.

[Sardog]

Ok, so if I upgrade to squeeze then I take it all the problems go away and i can just use the linux binary install from calibre.... no other changes need to be made? Thanks for you help. I will look and if upgrading won't wreck any other functions that I like to have (like remote desktop) then I will give it a try.

[kindleren]

I've been googling for the same error message "ImportError: cannot import name QCoreApplication". My system is centos5.6 Linux. I want to know who has solved the problem. Any one can tell me how to solved it?
Think you!
@Sardog
@chaley
@wahid
@kovidgoyal