[QGIS-Developer] Error due to possible Qgis dependency

[Alessandro Pasotti]

On Wed, Jan 15, 2020 at 10:50 PM Pedro Peixoto <pedropeixoto at psr-inc.com>
wrote:

> To the Qgis developer community,
>
> I am part of a team that develops a standalone software for Windows that
> encountered a critical error involving the Qgis software.
> The software, called "Hera", is developed in Python and currently uses
> PyQgis. The problem is that Hera works on all computers that have Qgis
> installed, but only on some computers that don't have Qgist installed.
> While trying to install it in a computer that has never had Qgis installed,
> a critical error is given when we try to open the now installed program.
> The error message displayed is as follows: "Failed to execute script Hera"
> (as can be seen in the image, available in the link below). Every
> dependency that I could think of that could influence the installation was
> previously installed, such as all the possible Microsoft visual studio C++
> packages, as listed below:
> - Microsoft Visual C++ Redistributable for Visual Studio 2008, 2013, 2015,
> 2017 and 2019.
> To test that the problem was truly due to the lack of some missing Qgis
> dependency, we created a machine on the AWS Amazon server and tried to
> install the software, as well as the  Microsoft visual studio C++ packages
> and the previously mentioned error was given. Only after installing Qgis on
> the machine was the Hera program successfully launched. However, after
> uninstalling Qgis on the same machine, the Hera program continued to run
> successfully, indicating to us that the source of the problem might be
> because of some dependency or configuration that Qgis does while
> installing.
> Since PyQgis does not offer some kind of logging or error message showing
> the user whats could possibly be missing, I was wondering if anyone could
> offer me some insight into what it might be. I appreciate the help, thank
> you.
>
> Link to the error message image:
> http://psr.me/1ayvzfn
>
> --
> Pedro R. Peixoto
> PSR
> www.psr-inc.com
> Tel.: +55 21 3906.2100
> <http://facebook.psr-inc.com/>  <http://twitter.psr-inc.com/>
> <http://linkedin.psr-inc.com/>
>


Hi, it's hard to tell, did you try to run dependency walker on the
installed DLLs ?


-- 
Alessandro Pasotti
w3:   www.itopen.it
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