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I am a new QGIS user, have installed QGIS on a Mac running Snow Leopard OSX 10.6.8 following all the instructions. QGIS seems to work well for everything other than when I boot up I get the message "Unable to load the plugin: Unable to load required package rpy2. Please ensure that both R, and the corresponding version of Rpy2 are correctly installed".

I have installed Rpy2 several times and reloaded R. I have R version 2.15 loaded (but also RStudio).

Does anyone have any ideas?

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  • How did you install rpy2? Did you use pip? – Simbamangu Apr 4 '12 at 7:57
  • What is the output if you start the Python interpreter and type in from rpy2.robjects import robject ? Do you get an error? – jlehtoma Apr 4 '12 at 10:16
  • I installed rpy2 using the RPy2-2.2.4-1.dmg downloaded together with the other Python Modules required for QGIS. – Bruce Page Apr 7 '12 at 12:41
  • When I enter from rpy2.robjects import robject in the Python terminal I get Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named rpy2.robjects >>> – Bruce Page Apr 7 '12 at 12:48
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A general installation will not work. You need to install to your QGIS python folder (e.g. C:\OSGeo4W64\apps\Python27\ (root folder), C:\OSGeo4W64\apps\Python27\Lib\site-packages (modules)).

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