[Qgis-developer] Fail to load Rmanage plugin

[Joona Lehtomäki]

Hi Otto,

While not exactly the same, your problem sounds related to problems I've 
had with rpy2, QGIS and ManageR on openSUSE 11.4 64-bit.

At least at some point libRlapack.so shipping with R-base RPM for 
openSUSE 11.4 (and at least 11.2 and 11.3 before that) was built with 
incompatible version of libgfortran. I managed to find the details once, 
but didn't find them again, sorry.

I got everything working on openSUSE 11.4 (64 bit), but this required 
building R from source. You can try the following (or at least steps 2 
and 3 if rpy2 just doesn't find your libR):

1. build R (2.14.0) from sources with --prefix=/usr and --enable-R-shlib 
and flags

2. try "from rpy2 import robjects". If you get an import error with 
"libR.so not found", add a file R-x86_64.conf into /etc/ld.so.conf with 
a single line:

/usr/lib64/R/lib (or where ever your libR is located)

3. run ldconfig as root

4. Install rpy2 (2.2.4) with pip (or easy_install)

Hope this helps,

Joona

On 25.11.2011 10:21, Otto Dassau wrote:
> Hi Carson,
>
> I would like to get your RManage plugin working but after loading rpy2 it
> fails to load the rpy2.robjects module. Maybe you have a quick help for me,
> how to solve this?
>
> I work on opensuse 11.4 64bit with python 2.7, qgis 1.7.2 and R 2.14.0.
>
>>>> import rpy2.robjects as robjects
> Traceback (most recent call last):
>    File "<stdin>", line 1, in<module>
>    File "/usr/lib64/python2.7/site-packages/rpy2/robjects/__init__.py", line
> 14, in<module>  import rpy2.rinterface as rinterface
>    File "/usr/lib64/python2.7/site-packages/rpy2/rinterface/__init__.py",
> line 75, in<module>  from rpy2.rinterface.rinterface import *
> ImportError: libR.so: cannot open shared object file: No such file or
> directory
>
> Thanks a lot
> Otto
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