At the present time, iScreensaver Designer 5.2 provides support for macOS 10.13 High Sierra, but there are some functional limitations.
Please read the 10.13 High Sierra Tech Note
as well as the Release Notes
Due to changes made by Apple, iScreensaver Designer version 5.2 does not currently support macOS 10.14 Mojave.
Please read our forum post
for the latest updates.
[Solved] Error - Mac screensaver installation
I created a screensaver for mac with the trial version of iScreensaver. I converted a SWF to mac screensaver.
We are testing the screensaver before purchasing. We found it worked perfectly on two of the macs we tested (I know the one is OS X 10.9 and the other OS X 10.9.2).
However testing on another machine with OS X 10.9.4 we get the following error:
"iScreensaver 220.127.116.118 Error ### LaunchChildApp: NSInvalidArgumentException launch path not accessible /Users/ds36/Library/Screen Savers/iScreensaver.saver/Contents/iScreensaver.app/Contents/MacOS/iScreensaver"
Any assistance regarding the above error would be much appreciated.