Weird. Just confirming: You can launch QB just fine if you hold down the option key (which prevents it from opening a file). But then when you try and open a file you get this crash.
Two things to try. First is to clear out the preferences:
1. Quit QuickBooks.
2. Hold down the option key and choose Go->Library from the Finder.
3. In the window that opens (Library) double click on the Preferences folder to open it.
4. Find the com.intuit.quickbooks2019.plist file. Drag that to the trash.
5. Relaunch QuickBooks. Did that fix it?
Second thing to try. Turn off third party extensions:
1. Reboot your computer and hold down the shift key as it reboots. This disables third party extensions and drivers.
2. Try QuickBooks again. Does it work?
There's a third thing you can try a swell:
1. Move the file out of the Dropbox folder and put it in your documents folder.
2. Can you open it in QB from there?
Finally, if none of these works, try opening the Sample Product file from the window that shows up if no company is open. Does that open?
Let me know here what you find out. If none of these work we can dig deeper. If its a bug I'd sure like to know more so we can fix it.
