The application “batmass.app” can’t be opened [MacOS X macOS Catalina 10.15]

[DinosaurInSpace]

Won't open upon clicking application after installation. Any help would be greatly appreciated. Thanks!

[chhh]

1. Won't open as in nothing happens at all?
2. Which version of java do you have?
3. Is that file executable? The packager might not have set the executable flag on the file.
4. Download the universal .zip isntead of installer, unpack and just run its <unpacked-path>/bin/batmass shell script.
5. If step 4 didn't work, then your java version is incompatible (likely too new). Download an alternative JRE. You don't really need to install it, just unpack it and point batmass to where it is. Download from here (select Java 8 JRE for Mac as tar.gz), unpack anywhere, then edit `/etc/batmass.conf, uncomment line 11 (#jdkhome="/path/to/jdk") and point it to your newly unpacked JRE.
   Maybe not too pretty, but will work.

[DinosaurInSpace]

Thanks for the prompt response. Will try and report back.