Linux Gama Installation does not work

[Timothée Brochier]

Hello,

Tryiong to install Gama on linux (Ubuntu), with the command "apt install gama-platform-jdk"

I get the following error : 

Best regards,

Timothée

timotheebrochier@Vulcain:~$ sudo -i

root@Vulcain:~#
root@Vulcain:~# apt install gama-platform-jdk
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libice-dev libllvm19 libpthread-stubs0-dev libsm-dev libx11-dev libxau-dev
  libxcb1-dev libxdmcp-dev libxt-dev openjdk-21-jdk openjdk-21-jdk-headless
  x11proto-dev xorg-sgml-doctools xtrans-dev
Use 'apt autoremove' to remove them.
The following NEW packages will be installed:
  gama-platform-jdk
0 upgraded, 1 newly installed, 0 to remove and 67 not upgraded.
Need to get 358 MB of archives.
After this operation, 0 B of additional disk space will be used.
Err:1 https://ppa.gama-platform.org ./ gama-platform-jdk 2025.6.4
  404  Not Found [IP: 140.82.121.3 443]
E: Failed to fetch https://github.com/gama-platform/gama/releases/download/2025.6.4/GAMA_2025.06.4_Linux_with_JDK.deb  404  Not Found [IP: 140.82.121.3 443]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?