Hello to all I am a great admirer of QGIS but I have a serious problem and I hope that there is someone that can help me. I started working with QGIS 2.2 (Valmiera) and it worked OK. I then (tried to) switched to QGIS 2.4 but then GRASS, SAGA and R stopped working. I have a laptop Windows 7 64 bit and a desktop Windows XP 32 bit. The phenomenons are the same.
Installing it as a standalone or with OSGeo4W gave the same results. These are the problems: GDAL: OK it woks For *GRASS 6 and 7*: Missing dependency. This algorithm cannot be run :-( This is for *SAGA and TauDEM* : Ooooops. The following output layers could not be open Channel Network C: *and a log path *........................... The above file(s) cannot be opened, which probably indicates that they were not correctly produced by the executed algorithm. *For R*: Missing dependency. This algorithm cannot be run :-( * Orfeo Toolbox*: OTB folder not configured. Please configure before running OTB algorithms. (This also didn't work in QGIS 2.2 but I didn't bother with his). In the Processing->Options->Providers the paths for GRASS 6.4.3 was C:/OSGeo4W64/apps/grass/grass-6.4.3/etc/grass-run.bat and for MSYS C:/OSGeo4W64/apps/msys/msys.bat This is wrong because I installed a standalone version and there is no OSGeo4W64 folder. I corrected the paths for both and pressed OK. I opened the Providers once again and saw that the two path were converted to the "original" ones that I "changed"; there is no way I can change the paths set up during the installation There is also a path for GRASS 7, but this was not installed. I have the impression that parameters for the Providers is from the previous installation through OSGeo4W - the previous installation. I truly believe that I did not uninstall or delete a file (I also think that the first time I did not uninstall but just deleted QGIS) that determines such behavior because I also noticed the following: When I install QGIS (any version) and install some plugins (which I would never use - as a test) and open the toolbox with several providers and when I uninstall this version and install it once again I find that the same plugins are installed and the toolbox is opened exactly the same as I left it in the previous installation. I am not a computer wiz but just a humble geologist who wants to use software for my work. Help - or explanation how to correct this would be most welcome. Regards Dr. Strumberger
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