Finally got this working on 64 bit trixi Raspberry pi. Had to recompile as 64-but but it works!

[tangoTH]

f you have tried running the official Dynaframe 2.19 release on a Raspberry Pi 5, you likely encountered BadImageFormatExceptionor wrong ELF class: ELFCLASS32errors. This is because the pre-built binaries are 32-bit and incompatible with the Pi 5's 64-bit architecture and the latest Debian (Trixie/Bookworm) libraries.

Here is the step-by-step fix to compile and run Dynaframe natively in 64-bit mode.

1. Install the 64-bit .NET 6 SDK
   You need the 64-bit compiler to build a native binary. Use the official Microsoft script:

Bash

curl -sSL https://dot.net/v1/dotnet-install.sh | bash /dev/stdin --channel 6.0 --install-dir ~/.dotnet
echo 'export DOTNET_ROOT=$HOME/.dotnet' >> ~/.bashrc
echo 'export PATH=$PATH:$HOME/.dotnet' >> ~/.bashrc
source ~/.bashrc

2. Clone and Compile Natively
   Don't use the Dynaframe2.ziprelease. Instead, build it directly on your Pi 5 so the headers match your CPU perfectly:

Bash

git clone https://github.com/Geektoolkit/Dynaframe3.git ~/DynaframeSource
cd ~/DynaframeSource
dotnet publish -c Release -r linux-arm64 --self-contained false -o ~/Dynaframe /p:CheckEolTargetFramework=false

3. Apply the "Globalization" Fix.
   Newer versions of Debian (like Trixie) have renamed language libraries that cause .NET apps to crash on startup. We force "Invariant Mode" to bypass this:

Bash

cat < ~/Dynaframe/Dynaframe.runtimeconfig.json
{
"runtimeOptions": {
"tfm": "net6.0",
"framework": {
"name": "Microsoft.NETCore.App",
"version": "6.0.0"
},
"configProperties": {
"System.Globalization.Invariant": true,
"System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": true
}
}
}
EOF

4. Run Dynaframe
   You must export the globalization variable and point to your display before launching:

Bash

export DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
export DISPLAY=:0
cd ~/Dynaframe
dotnet ./Dynaframe.dll

[tangoTH]

I just tested this by completely removing my previous config.

Ran again and this is the correct output

pi@PiFrame:~/DynaframeSource $ export DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
export DISPLAY=:0
cd ~/Dynaframe
dotnet ./Dynaframe.dll
12/21/2025 11:40:Initializing database..
12/21/2025 11:40:InitializeDatabase() - Building Database
12/21/2025 11:40:Count of files in the database: 0
12/21/2025 11:40:Count of files in the database: 1
12/21/2025 11:40:Count of files in the database: 1
12/21/2025 11:40:Rebuilding playlist called...rebuilding the playlist...
12/21/2025 11:40:Rebuilding playlist took: 54ms.
12/21/2025 11:40:Playlist has: 1 items now.
12/21/2025 11:40:Database initialized. Took: 1467 ms.
12/21/2025 11:40:Timer_Tick: Reload settings was true... loading settings
12/21/2025 11:40:InitializeDatabase() - Building Database
12/21/2025 11:40:Count of files in the database: 1
12/21/2025 11:40:Count of files in the database: 1
12/21/2025 11:40:Count of files in the database: 1
12/21/2025 11:40:Rebuilding playlist called...rebuilding the playlist...
12/21/2025 11:40:Rebuilding playlist took: 1ms.
12/21/2025 11:40:Playlist has: 1 items now.
12/21/2025 11:40:KillVideoPlayer - Entering Method.
12/21/2025 11:40:VideoPlayer CheckStatus returning false..: Video has exited!
12/21/2025 11:40:Skipping to item: 1332
12/21/2025 11:40:Returning item# : 0 File: /home/pi/Pictures/45f4adfe-c5d5-462a-9a70-ede1b3d396f2_2671866363.jpg
12/21/2025 11:40:Next file is: /home/pi/Pictures/45f4adfe-c5d5-462a-9a70-ede1b3d396f2_2671866363.jpg
12/21/2025 11:40:PlayFile() called with TransitionTime=10000 and path: /home/pi/Pictures/45f4adfe-c5d5-462a-9a70-ede1b3d396f2_2671866363.jpg
12/21/2025 11:40:KillVideoPlayer - Entering Method.