Install gnash-common-opengl by entering the following commands in the terminal:
sudo apt update sudo apt install gnash-common-opengl
Description:
dummy package for gnash-common-opengl removal
This package is a transitional package for gnash-common-opengl removal. . It can be safely removed when gnash-common is installed.
Homepage: http://www.gnu.org/software/gnash/
Version: 0.8.11~git20160608-1.4
Section: universe/video