The answer is in the error message, There are lots of filters that are not there initially. There are hundreds of them. Gmic tries to download the relevent file as required.
https://gmic.eu/data_film_presets/grain ... x1600.cimzBest way. Make sure you are connected to the internet.
Sometimes the gmic.eu site is unavailable, it has limited resources. Wait and try again.
It might be that your AV is blocking the download, although this is unlikely. It is possible to install these manually. The grain filters attached, unzip and put in
C:\Users\"yourname"\AppData\Roaming\gmic This for a regular Gimp installation, not sure about the samj portable.
Attachment:
gmic.jpg [ 151.62 KiB | Viewed 3838 times ]
Attachment:
gmic-2.jpg [ 181.52 KiB | Viewed 3838 times ]