Installed plugin, but isn't working

[kayserifserif]

I've tried installing via both brew cask install quicklook-pat and the .pkg installer, but the pattern doesn't show up in QuickLook.

Running on macOS Sierra 10.12.5.

[ruction]

Are you sure the plugin installed successfully? What happens if you open a .pat-File for example in "/Adobe Photoshop... /Presets/" with Quicklook?

[kayserifserif]

[theoriginalgri]

It looks like you have some other plugin which picks up the file type first to display the textual contents. Normally macOS does not display the textual contents of a file if it's unknown.

Please check the Info.plist files of other plugins in /Library/QuickLook and ~/Library/QuickLook. Which might contain the following or similar:

<key>LSItemContentTypes</key>
			<array>
				<string>public.data</string>
				<string>public.item</string>
			</array>

[schroef]

I got this error using it on OSX 10.11.6
I did a qlmanage -d1 -p PATTERNFILE

Testing Quick Look preview with files:
	desktop/wg_fabric_patterns_sample.pat
[DEBUG] Preview test for desktop/wg_fabric_patterns_sample.pat -- file:///Users/romboutversluijs/. Content type UTI: dyn.ah62d4rv4ge81a2py
[DEBUG] file:///Applications/MAXON/CINEMA%204D%20R17/CINEMA%204D.app/Contents/Library/QuickLook/CINEMA%204D.qlgenerator/ might shadow a plug-in with the same identifier and version (<QLGenerator /Applications/Adobe After Effects CC 2015/Plug-ins/MAXON CINEWARE AE/(CINEWARE Support)/lite/CINEMA 4D Lite.app/Contents/Library/QuickLook/CINEMA 4D.qlgenerator>)
[DEBUG] Previewing file:///Users/romboutversluijs/Desktop/wg_fabric_patterns_sample.pat. Content type UTI: dyn.ah62d4rv4ge81a2py. Generator used: <QLGenerator /Library/QuickLook/QLStephen.qlgenerator>
[DEBUG] Loading <QLGenerator /Library/QuickLook/QLStephen.qlgenerator>
[DEBUG] Previewing file:///Users/romboutversluijs/Desktop/wg_fabric_patterns_sample.pat did not produce anything
[DEBUG] Thumbnailing desktop/wg_fabric_patterns_sample.pat -- file:///Users/romboutversluijs/ - type: dyn.ah62d4rv4ge81a2py - generator: <QLGenerator /Library/QuickLook/QLStephen.qlgenerator> (try #1)
[DEBUG] Thumbnailing file:///Users/romboutversluijs/Desktop/wg_fabric_patterns_sample.pat. Content type UTI: dyn.ah62d4rv4ge81a2py. Generator used: <QLGenerator /Library/QuickLook/QLStephen.qlgenerator>
[DEBUG] Thumbnailing file:///Users/romboutversluijs/Desktop/wg_fabric_patterns_sample.pat did not produce anything
2017-12-14 00:07:18.186 qlmanage[11197:400532] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0xa00b, name = 'com.apple.coredrag'
See /usr/include/servers/bootstrap_defs.h for the error codes.
2017-12-14 00:07:18.231 qlmanage[11197:400532] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0xc63f, name = 'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.
2017-12-14 00:07:18.234 qlmanage[11197:400532] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x490f, name = 'com.apple.CFPasteboardClient'
See /usr/include/servers/bootstrap_defs.h for the error codes.
2017-12-14 00:07:18.234 qlmanage[11197:400532] void __CFPasteboardSetup() : Failed to allocate communication port for com.apple.CFPasteboardClient; this is likely due to sandbox restrictions
MBP-Schroef:~ Admin$ 

[theoriginalgri]

It seems our plugin was asked by the system to create a preview.

Make sure it is installed in /Library/QuickLook/PatternQuickLook.qlgenerator.

Try to reload all plugins using qlmanage -r.

If it still does not work, try removing QLStephen temporarily since the log you posted seems to try this plugin instead.

[schroef]

How come they are conflicting. *.pat is different file type of what qlstephen uses right? Thats for showing document types containing strings / text

Jep thats it! Ive been looking a bit into this ql and would like to add sketchup to this using a thumbnail which is aside of the file. GOt to the point of making a file in Xcode but i think i need custom code to check file aside of the flle. Do you know some info about this?

[theoriginalgri]

The decision which plugin will be used for a file does not happen from the file extension.

QLStephen creates a preview for every file type and seems to be asked first by the system :(

[schroef]

i dropped it it, it doesnt add tht much. I didnt see any difference and it wasnt working on files it said it worked. Today i alsao was told that using ql plugins in this mather is supported nomore. Yet they still work???

most apps have the quicklook internally now