Getting FMCore error 50335758 when opening Suitcase Fusion for Mac

Affected versions

This article applies to Suitcase Fusion for Mac versions 19 (Suitcase Fusion 8) through 21.

Symptoms

When you open Suitcase Fusion for Mac you get an error dialog; clicking OK quits the application.

Solution

There are several causes for this error message. Try the following steps in order to resolve the issue; if you need assistance you can submit a support request and Technical Support can help you.

Step 1: Most common solution

Restart your computer and re-launch Suitcase Fusion

Restarting your computer will restart the Suitcase Fusion TypeCore (this is the background process that activates and deactivates fonts). This process needs to start when Suitcase Fusion tries to connect the first time and can’t respond properly. By restarting your computer it will restart all of Suitcases services and this should resolve the issue.

NOTE - It is highly suggested that you follow Step 2 to see if you have Suitcase Fusion set as a Login Item. 

Step 2:

Check to see if Suitcase Fusion is set as a login item

If Suitcase Fusion is set as a login item in macOS, it may open while the type core is starting and the type core can’t respond properly. There is no way to make login items start in a specific order; the only solution is to remove Suitcase as a login item and open it when needed.

1. Control-click on the Suitcase Fusion icon in the Dock
2. Uncheck Options > Open at Login

Recent versions of macOS will ask if you want to reopen windows when restarting your Mac. This feature works in a manner similar to a login item in macOS; when restarting your Mac, uncheck “Reopen windows when logging back in” before clicking Restart.

Step 3:

Removing (potentially) outdated or temporary files

Sometimes, outdated or damaged temporary session files will cause Suitcase Fusion to be unable to find the type core process. In these cases, waiting a few seconds before trying to open Suitcase Fusion doesn’t address the issue.

1. In the Finder, select the Go menu and hold the Option key down; a Library menu option will appear
2. Select Library
3. In the Library folder, open the Extensis folder and drag the com.extensis.FMCore-LaunchInfo.conf file to the Trash
4. In the Finder, choose Go > Go to Folder…
5. For “Go to the folder:” enter ~/.Extensis and click Go
6. Drag the FMCore folder to the Trash

Step 4 (rare):

Repairing a damaged or incomplete hosts file

Occasionally, an incomplete or damaged hosts file will cause Suitcase Fusion to be unable to find a running type core process. For more information about fixing the hosts file, go to Getting FMCore error 67112974 when opening Suitcase Fusion for Mac.

If none of these steps have resolved your issue, please submit a support request and Technical Support Team can assist you.