I'm having problems with Mac projectors under High Sierra. If I create the .app and run it on the same machine, all is fine. However, if I move it to another machine I get the message '"app name" can't be opened. You should move it to the trash.'
I've read that this probably has something to do with High Sierra's Gatekeeper function but is there any solution besides totally disabling Gatekeeper via Terminal commands?
If I Control-Click and choose Open, I get the same message.
Apple removed the ability to open files downloaded from "Anywhere" in High Sierra. The only choices are "App Store" or "App Store and Identified Developers."
ratio99's problem may well be solved with what kglad said about changing the security settings.
ransombb's problem could be the age of the projector. I can make projectors and they work fine, even if I move them to another drive, or set them to open in 32 bit instead of 64 bit.
I can't easily test it on another machine though. ransom99, do you have a projector I can try?
I don't have one here — I'm working off-site today — but will post one of the problem children tonight or in the morning. Thanks for your help!
I'm hopefully flying to London tonight. I'll be back online some time tomorrow evening.
MVP, change the security settings doesn't work for me.
This is the image with the error message that appears. (image in spanish)
"6% animated flies" is damaged and can not be opened. You should move it to the trash.
"animated flies 6porciento" is in the disk image "Moscas.dmg" Google Chrome has downloaded this disk image today at 10:00 from wetransfer.com
Would you be willing to let me try the WeTransfer link?
By the way, MVP is a title (Most Valuable Participant I think). I'm normally called Colin.
ratio99, your projector opens ok, but I don't know what to do next. Pressing a key causing graphics to flash on and off. I never hear sound. But at least the projector opens. You can also right-click Show Package Contents, and get through to movie.swf, to try it that way.
random, each version of yours opens ok, but I get an empty winners list, and clicking Play doesn't do anything. It does play sound.
I'm on High Sierra, so maybe it's not a fair test, but apart from me not knowing how to use the two projectors, they seem to open ok.
That's really odd as when I download the usual '“filename” is damaged and can’t be opened. You should move it to the Trash.' And that's with me downloading back to the same machine that created the projector in the first place. And I'm running High Sierra, too. Projector was built on this machine a couple days ago.
I tried with Chrome, in case that mattered, and it gave a message about how zip files can be dangerous, but I opted to Keep the file, and it worked as well as the Safari one had done.
Do you have FileVault turned on? I have it turned off.
That's so weird that it works for you but not me. I tried in both Chrome and Safari as well. When I "Show Package Contents" and drill down, the Flash Player is what's broken. The SWF in package plays just fine.
I think I have seen that before, and fixed the projector by replacing the Flash Player. I just tried a test with your projector, and it seemed to work. Go into show package contents of any Flash Player.app that works for you, and copy its MacOS/Flash Player Unix file into the projector's MacOS folder (replacing the suspect one). In my test I used Flash Player 126.96.36.199, because it was very close to the file size of your projector's Flash Player.
Going in to the Package and copying/pasting Flash Player unix file into the "bad" projector doesn't work here. I can strip out the SWF and it plays fine but the packaged app remains unopenable.
Here is a link to the projector file and its required text file (projector reads a list of names from the text file): Downloading from DiskStation
Also, here's is a direct link to the .app file: Downloading from DiskStation
What I found today was that if I AirDrop the projector to another Mac, it opens fine. But it breaks when stored on the server, either directly as an .app file or within a Zip archive. Dropbox breaks them, too.
Anyhow, thanks for your help!
I've been struggling with the same issue - very annoying. Few things I've discovered that work.
1. This happens when I distribute a projector app via web based download. Dropbox, Google Drive, etc. If I send a link to another person or test myself and download via a browser I get the same error - "... is damaged and can’t be opened. You should move it to the Trash." But if I distribute using a sync utiltiy - Dropbox Sync utility or Google Drive's sync utility, the app works.
2. Colin suggested changing the Flash player from within the app itself. This is working for me as well BUT only if I launch the app from "Show package contents" /contents/MacOS/Flash Player. So double click Flash Player and it lauches correctly. Again this is after replacing the flash player with a working local projector files flash player. IF I go back to the projector icon and attempt to launch (even after replacing the Flash Player) I generate the same error.
Note: I always zip my files before uploading to distro... still get these errors. Something is happening in transporting these files. Wish Adobe could figure this out?!
I have the same problem, but it happens to me when sending it through some internet service (for example: wetransfer or dropbox). I don't have High Sierra, just Sierra and my client have Mavericks os.
Running into the same trouble. Fixed by this command line: xattr -cr AppName.app
Unfortunately, each client have to do it. You should provide a simple bash file, so client don't have to open a terminal, which can be opened by a simple double click along your .app inside a zip 😉