Quite a number of issues using your repo in C# console project.

[surgeonix]

Quite a number of issues using your repo in C# console project.

[SuRGeoNix]

You need the shared ffmpeg's libs (do you have the .dll files?). You can download the sample demo version and copy the Libs folder to your application as well. Flyleaf uses the API code and not the .exe binaries!

[SuRGeoNix]

And for the first issue that you mention you need to change your target framework to net5.0-windows. Edit your .csproj file and change the line

<TargetFramework>net5.0-windows</TargetFramework>

[SuRGeoNix]

Use also the latest package 3.1.14 as it fixes some issues for the downloader, re-open this if you still have issues

[zydjohnHotmail]

Hello:
Thanks, it is working now.
The biggest headache is, how I can know there are so many DLLs are necessary to use the repo.
Is it possible that you add all those DLLs in your nuget package, so I don't have to find them somewhere else?
Thanks,

[SuRGeoNix]

No, it wouldn't be wise to include them in the package. They don't change /update every day and it wouldn't be ideal if the package was so large on every flyleaflib update. You need only the x86 or x64 that you are going to use and you can remove the filters as far as i remember.