[User feedback required] why does jdownloader keep asking to install FFmpeg?

[minkyukim0204]

I tried to download YouTube videos, which requires ffmpeg. I clicked install, but jdownloader instead showed a message "You have the latest version." What should I do now? It doesn't allow me to install it.

[Jiaz]

Try the following. Close JDownloader, then fix your installation, see
https://support.jdownloader.org/Know...r-installation
and then wait for JDownloader to ask for ffmpeg again and then restart JDownloader.
What OS are you using? MacOS?

[HamBush971]

Same problem. Win10 Pro x64, Java is current release Version 8 Update 301.

Happened first about 2 weeks ago, needed full uninstall & reinstall.
Just happened again today.
Above tip fixed it. BTW "JDownloader.jar" was present.
No idea why this is happening, nothing has changed in how it is used or updated & it is still whitelisted....

[Jiaz]

Originally Posted by HamBush971

Happened first about 2 weeks ago, needed full uninstall & reinstall.

Not required, see https://support.jdownloader.org/Know...r-installation

[Jiaz]

Please provide a log, see https://support.jdownloader.org/Know...d-session-logs
then we can check why JDownloader is still asking for ffmpeg again and again

[HamBush971]

Originally Posted by Jiaz

Please provide a log, see **External links are only visible to Support Staff**...
then we can check why JDownloader is still asking for ffmpeg again and again

Thanks for the reply (sorry for delay answering) JD2 has behaved since using your tip.
I have seen this on start since the last update. (01 Oct) & is in
updateError.log / Error.log :-

java.lang.ClassNotFoundException: org.jdownloader.update.launcher.JDLauncher
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:81)
	at com.exe4j.runtime.WinLauncher.main(WinLauncher.java:94)
	at com.install4j.runtime.launcher.WinLauncher.main(WinLauncher.java:25)

Different Issue I guess but output.log is empty.
Will see if I can resolve it.
~~~
Update
Reinstallation fixed that & FFMPEG was reinstalled also on run. Will now log to see if I can catch any further errors. Thanks for the help.

[Jiaz]

@HamBush971. Thanks for the feedback
https://support.jdownloader.org/Know...r-installation
This method should also work just fine. No need to reinstall JDownloader.