Am 06.10.19 um 16:27 schrieb Darrel Maddy:
I have just built a new machine and tried to install qgis . I am
getting the following error message
libpng error: application is running with png.c from libpng-1.2.56
libpng warning: application is compiled with png.h from
libpng-1.6.21
checking the installed library it is reporting as 1.6.34 (the latest
in the repository)
As I am not a frequent linux user I do not know how to fix this,
nothing I have tried has worked. Can anyone suggest how I should
proceed?
Most probably you have compiled GDAL or something other from source.
In that case, you have to install libpng-dev before self-compiling.
See
<https://gis.stackexchange.com/questions/291191/libpng-problems-for-qgis>
<https://gis.stackexchange.com/questions/313294/cant-install-support-for-ecw-in-qgis-3-6-3-4-on-ubuntu-18-04>
<https://gis.stackexchange.com/questions/331338/getting-libpng-error-for-qgis-on-ubuntu-19-04>
HTH,
Andre Joost
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