Great! 2.16.3 resolves the problem of not being able to access the GRASS tools from the Processing toolbox. Thanks so much for the quick fix.

I am however still getting a crash when trying to work with existing GRASS data layers. As soon as I click on a GRASS layer in the Browser panel, QGIS crashes.

On 2016-10-11 10:06 am, William Kyngesburye wrote:
Install 2.16.3, this should fix GRASS problems.

On Oct 11, 2016, at 8:07 AM, wkent <> wrote:

I can run GRASS commands through the GRASS toolbox (using the GRASS plugin); but I am unable to run them through the Processing Toolbox. I get the "This algorithm cannot be run :-(" error, and the QGIS log shows:

2016-10-11T09:02:12     0       GRASS GIS 7 execution console output
                        /bin/sh: grass70: command not found

                        /bin/sh: grass70: command not found

I have set the paths in both the Processing Toolbox options, and the GRASS Plugin options, to /Applications/

In regards to the crash I get when trying to add an existing GRASS layer (vector or raster) from the Browser panel to the Layers panel, the attached text file is the crash report that was generated.

Thanks so much for your help!

On 2016-10-07 5:51 pm, William Kyngesburye wrote:
Loading GRASS data and using the GRASS toolbox are separate from using
GRASS "algorithms" in the Processing plugin.
The Processing plugin needs to know where GRASS is (set in Processing
options, but defaults to bundled GRASS 7), and runs GRASS commands in
a separate process than QGIS (should not crash QGIS).
Loading GRASS data in QGIS needs no configuration of a GRASS path
(this could crash QGIS if there is a bug or build problem).  Running
GRASS modules does need configuration, but this also defaults to the
bundled GRASS 7. There is also a "general" GRASS option for the GRASS
installation path, but this seems to default to the compiled GRASS
location.  You can try setting this to the QGIS app:
If you still get a crash, a copy of the crash log would help figure
out what's wrong.
On Oct 7, 2016, at 1:30 PM, wkent <> wrote:
On 2016-09-29 8:45 am, Howard Frederick wrote:
Recently upgraded to 2.16 - but cannot enable GRASS in the Processing configuration. Any ideas how to make this work? The folder seems to be correctly indicated in the config: /Applications/ This (and alternatives like ending as grass7/ ) give "This algorithm cannot be run :-(".
Version: QGIS 2.16.2, on OS X 10.10.5.
Same error here, except running OS X 10.11.6. It seems to be a path issue, although I have not been able to determine where the path is set. Additionally, while QGIS is able to locate and open my existing GRASS locations/mapsets, when I click on a GRASS layer in the browser panel to add to the layers panel, QGIS crashes.
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William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
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William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>

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