[Qgis-developer] Fail to load Rmanage plugin

[Carson Farmer]

Hi Otto,

I think Joona's directions should get you going... I suspect that the
packged version of R for OpenSUSE isn't built with the
--enable-R-shlib flag, so it can't be used as a shared library.
Building from source should sort this out. If not, please do let me
know, and hopefully we can try to figure out something else.

Carson

On Fri, Nov 25, 2011 at 8:47 AM, Joona Lehtomäki
<joona.lehtomaki at cs.helsinki.fi> wrote:
> 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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>
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-- 
Robert Farmer
Haldon Construction Ltd.
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