ST Link Server installation fails on macOS Catalina
com.izforge.izpack.api.exception.IzPackException: An error occured
in java.lang.Thread.run() at Thread.java:748
in com.izforge.izpack.installer.unpacker.UnpackerBase.run() at UnpackerBase.java:236
in com.izforge.izpack.installer.unpacker.UnpackerBase.unpack() at UnpackerBase.java:273
Caused by: com.izforge.izpack.api.exception.InstallerException: File execution failed
in com.izforge.izpack.installer.unpacker.UnpackerBase.unpack() at UnpackerBase.java:251
in com.izforge.izpack.installer.unpacker.UnpackerBase.unpack() at UnpackerBase.java:438
in com.izforge.izpack.installer.unpacker.UnpackerBase.executeFiles() at UnpackerBase.java:930
I tried changing the installation folder since the root /Applications is now protected. That worked fine for the first half of the installation process, but the screenshot shows that the ST Link Server is still trying to use the default /Applications/Ac6/ folder which is now restricted on macOS Catalina.
For more on the macOS Catalina restrictions, see:
https://forums.developer.apple.com/thread/120314