Installation on Catalina

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  • Anna Kim


    I’m trying to install Icy 2 on Mac OSX Catalina (10.15.3). I’ve installed JDK 8 (jdk-8u241-macosx-x64.dmg), but when I open the application with CTRL+click, I get the error that the application can’t be opened (nothing about security preferences).

    I was wondering if you have any suggestions for this error.



    Stephane Dallongeville

    Hi Anna,

    Is Icy correctly installed in Application folder ? If yes what you can try is to manually launch the icy.jar file located into the package in the meantime (that should work). It’s not the first time we have report about people having issues launching Icy on OSX Catalina, we still yet didn’t figured why but we are investigating.


    – Stephane

    Shen Han

    Hey I have the same problem! once I installed JDK8 and Icy, I couldn’t open it.

    Stephane Dallongeville

    If you properly followed instructions from download page and it still doesn’t open Icy, the last thing you can try is to directly open the icy.jar (or updater.jar file) into the package (so you need to show the package content first).

    – Stephane

    teodora andrian

    Hi! I have exactly the same issue… but I tried opening directly the icy.jar and it worked 🙂 Thanks!


    Shen Han

    Thanks Stephane!!

    Maria Luisa Malosio

    I have the same problem and I tried to launch the .jar file but I got an error message saying that the software is unsafe and may contain malware, so it is not possible to launch it. Is there a way to solve this problem?

    Thank you very much



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