Error with AppleScript to Press Keys

I'm trying to replicate pressing "⌘⌃⌥C" on the keyboard (ignoring the quotation marks) via the following embedded AppleScript, with the trigger being a certain kind of file being added to a folder...

Code: Select all: tell application "System Events" keystroke "c" using {control down, option down, command down} end tell

However, I'm receiving an error message from Hazel when I attempt to run this. Any advice on what I might be doing wrong?

What is the error message you are seeing?

Mr_Noodle wrote:What is the error message you are seeing?

It's just a generic error message...

https://imgur.com/a/KxTsrhi

Check the logs. Go to Help->View Logs and see if you can find more details of the error there.

Mr_Noodle wrote:Check the logs. Go to Help->View Logs and see if you can find more details of the error there.

Thanks. Here's what I found, though I'm not sure what exactly it means...

2023-04-07 01:53:35.780 hazelworker[89451] [Error] AppleScript failed: Error executing AppleScript on file /Users/alexrosenfeld/Dropbox/My Mac (Alexs-MacBook-Pro.local)/Desktop/video-output-4749A26F-248F-483E-A450-9EBAB34F89CE.MP4.
2023-04-07 01:53:35.780 hazelworker[89451] OSAScript error: {
NSLocalizedDescription = "System Events got an error: hazelworker is not allowed to send keystrokes.";
NSLocalizedFailureReason = "hazelworker is not allowed to send keystrokes.";
OSAScriptErrorAppAddressKey = "<NSAppleEventDescriptor: [0x0,4e04e \"System Events\"]>";
OSAScriptErrorAppNameKey = "System Events";
OSAScriptErrorBriefMessageKey = "hazelworker is not allowed to send keystrokes.";
OSAScriptErrorMessageKey = "System Events got an error: hazelworker is not allowed to send keystrokes.";
OSAScriptErrorNumberKey = 1002;
OSAScriptErrorRangeKey = "NSRange: {0, 0}";
}

That means you need to give Hazel permissions. Launch System Preferences/Settings and go to Security & Privacy. Select Accessibility and add/enable Hazel in that list. Also, check the Automation list.

Mr_Noodle wrote:That means you need to give Hazel permissions. Launch System Preferences/Settings and go to Security & Privacy. Select Accessibility and add/enable Hazel in that list. Also, check the Automation list.

Thanks! I checked, and Hazel is already added and enabled, so why would I be getting this error message then? What is the Automation list?

It's also in System Settings/Preferences in the same list with Accessibility.

Mr_Noodle wrote:It's also in System Settings/Preferences in the same list with Accessibility.

I see. Thanks. I can confirm that Hazel has already been added and enabled for "System Events" in "Automation." So that doesn't seem to be the problem either. What am I missing?

Can you post a screenshot of how it looks in the Accessibility settigns?

Mr_Noodle wrote:Can you post a screenshot of how it looks in the Accessibility settigns?

Here you go...

https://d.pr/i/R1s3Bf
https://d.pr/i/WR2OY0

I just noticed that in the accessibility settings (but not in the automation settings) there is an additional Hazel item, with a weird name, "86Z3GCJ4MF.com.noodlesoft.HazelHelper". I have not turned this one on, as I had already turned on the "Hazel" item, and also because I hadn't noticed this due to its name and am confused about what it is.

Yes, enable that as well. It's horribly named because of Apple's "security" requirements. It really should be handled by enabling Hazel by itself but the OS is buggy in that regards and sometimes exposes these internal processes.

Mr_Noodle wrote:Yes, enable that as well. It's horribly named because of Apple's "security" requirements. It really should be handled by enabling Hazel by itself but the OS is buggy in that regards and sometimes exposes these internal processes.

Thanks for clarifying! I did this, and it's now working without any issues, as far as I can tell. Awesome. Much appreciated.