[Qgis-user] How to enable GRASS7 in QGIS 2.16 on Mac?

[wkent]

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 <wkent at medinaco.org> 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/QGIS.app/Contents/MacOS/grass7.
>> 
>> 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:
>>>  /Applications/QGIS.app/Contents/MacOS/grass7
>>> 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 <wkent at medinaco.org> 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/QGIS.app/Contents/MacOS/grass7
>>>>> 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>
>>> http://www.kyngchaos.com/
>>> "Those people who most want to rule people are, ipso-facto, those
>>> least suited to do it."
>>> - A rule of the universe, from the HitchHiker's Guide to the Galaxy
>> <qgis_2-16-2_crash_report_loading_grass_layer.txt>
> 
> -----
> William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
> http://www.kyngchaos.com/
> 
> "We can die but once, and that once we must die.  To be always
> fearing, then, would not avert it, and would make life miserable."
> 
> - Tarzan, on death