Is there any chance it's the 32 bit OSGEO4W running on a 64 bit Windows?
I got a similar error trying to run a portable install on USB of 2.18, 32 bit
on 64 bit Win 7 (2.14 ran just fine)
From: Qgis-user [mailto:[email protected]] On Behalf Of
Michael.Dodd
Sent: Monday, 27 February 2017 9:01 AM
To: Andre Joost <[email protected]>; [email protected]
Subject: Re: [Qgis-user] qgis 2.18.3 not installing on win 10
I tried uninstalling and installing again using the stand alone installer.
This gave the same error so I uninstalled it.
Then I tried the OSGEO4W installer but it did not install exactly where I asked
it to, instead it made its own directory on Y (Y:\osgeo_download). It did start
up once but after that it failed to start and instead gave the same error about
missing .dll's even though they were present. I think I had a problem similar
to this several qgis versions ago but it was then resolved, now the issue seems
to be back.
This is the \QGIS 2.18\bin\qgis.bat file:
@echo off
call "%~dp0\o4w_env.bat"
@echo off
path %OSGEO4W_ROOT%\apps\qgis\bin;%PATH%
set QGIS_PREFIX_PATH=%OSGEO4W_ROOT:\=/%/apps/qgis
set GDAL_FILENAME_IS_UTF8=YES
rem Set VSI cache to be used as buffer, see #6448
set VSI_CACHE=TRUE
set VSI_CACHE_SIZE=1000000
set
QT_PLUGIN_PATH=%OSGEO4W_ROOT%\apps\qgis\qtplugins;%OSGEO4W_ROOT%\apps\qt4\plugins
start "QGIS" /B "%OSGEO4W_ROOT%"\bin\qgis-bin.exe %*
and this is the directory where the relevant .dll's are
Y:\osgeo_download\apps\qgis\bin
but it says they are missing even though they are present in this directory.
________________________________
From: Qgis-user
<[email protected]<mailto:[email protected]>>
on behalf of Andre Joost
<[email protected]<mailto:[email protected]>>
Sent: 26 February 2017 16:23:38
To: [email protected]<mailto:[email protected]>
Subject: Re: [Qgis-user] qgis 2.18.3 not installing on win 10
Am 25.02.2017 um 21:58 schrieb Michael.Dodd:
> Have been using qgis for years. Just uninstalled 2.14 and installed
> 2.18.3 but it refused to start saying that qgis_app.dll,
> qgis_core.dll and qgis_gui.dll are all missing.
>
>
> Infact they are not missing, they are all present. However it seems
> to be looking in the wrong place, think similar problem has occurred
> with one or two previous versions. I am NOT installing on c: drive
> as it has little space but instead installing on y: drive. This
> worked fine for version 2.14 and various other programs but with
> version 2.18.3 it does not work.
>
>
You could try the OSGEO4W installer. It lets you choose the root
directory where everything is installed to.
Or have a look at \QGIS 2.18\bin\qgis.bat and o4w_env.bat. The variable
OSGEO4W_ROOT might be set wrongly. You get it when you type set inside
the OSGEO4W Shell. Override the definition if necessary.
HTH
André Joost
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