The fact that it’s a Java-based app is not the real problem (as long as you have the latest version on Java installed on your Mac). The real problem is that macOS 10.15 Catalina has very strict security and privacy settings (compared to any previous version of macOS, OSX or MacOSX).
Since I upgraded to macOS 10.15 Catalina, I had to buy the new version of my beloved EyeTV app. So after buying the all new EyeTV 4 (64bit) at Geniatech (who took over EyeTV from Elgato) I installed the app, but whenever I try to run it, I get an “Application not responding” error. I have tried reinstalling the app, but that doesn’t help. I’ve also tried to download and install a newer version, but that doesn’t help either. Deleting the preferences (using the EyeTVreporter.app) doesn’t help either. Even uninstalling EyeTV and all associated files completely (using the EyeTVreporter.app) and then reinstalling doesn’t fix this either…
This is so strange, because EyeTV 4 Beta was running fine on this same Mac…
What can I do ?
The problem is not in EyeTV, it’s in the new extremely strict security and privacy settings that are new to macOS 10.15 Catalina.
To fix this, do this :
quit the EyeTV app by clicking on it’s icon in the Dock while pressing the ALT-key on your keyboard
in the popup menu, the regular ‘Quit’ option will now turn into ‘Force Quit’
click on ‘Force Quit’ and make sure EyeTV app is quit (so there is no longer a black dot below it’s icon in the Dock)
click on the Apple-icon in the top menu bar of your screen
from the pulldown menu select System Preferences
make sure you are in the System Preferences window (main window), if not, click the ‘dots in a grid’-button in the top menu bar of the window
in the System Preferences window, click on Security & Privacy (iron Home icon with circular dial on it)
in the Security & Privacy window, click on the ‘Privacy’ tab
in list on the left, click on ‘Files and Folders’
in the list that now appears on the right, scroll down to EyeTV and put a checkmark at ‘Documents Folder’
if you get a popup warning “EyeTV will not have access to files in your documents folder until it is quit” click the “Quit Now”-button