Updated to 2.8.0.0 and it won't start now for me either:
Error: Could not find or load main class com.biglybt.platform.JavaBitMode
Caused by: java.lang.ClassNotFoundException: com.biglybt.platform.JavaBitMode
unzip: cannot find or open /opt/biglybt/swt/swt-x86.jar, /opt/biglybt/swt/swt-x86.jar.zip or /opt/biglybt/swt/swt-x86.jar.ZIP.
Error: Could not find or load main class com.biglybt.ui.Main
Caused by: java.lang.ClassNotFoundException: com.biglybt.ui.Main
Looks like it can't figure out if the platform is 32-bit or 64-bit, so it falls back to 32-bit but the SWT .zip is missing. The last version I was using (2.7.0.2) seems to do a similar check except it passes and finds the 64-bit SWT. I tried copying the startup script (/usr/bin/biglybt) from the working version and using it in the broken version but it didn't make any difference so the problem appears to be elsewhere.
Either way 2.8.0.0 definitely seems to be broken.
Pinned Comments
mrxx commented on 2022-11-01 12:48 (UTC)
In order to get rid of annoying update messages at startup, go into Tools > Options > Interface > Start. Disable the 'Check for latest version" and 'Auto download updates' options.
Also disable 'Enable plugin update checking' in Tools > Options > Plugins > Plugin Update.