Cannot launch gitk on Mojave: mapped file has no cdhash? I had a working version of git + gitk installed via homebrew on MacOS High Sierra.

After I upgraded to Mojave, I can no longer start gitk. It fails with the following error, repeated 105 times:

Error in startup script: 2018-11-16 09:30:53.167 osascript[48731:3339263] 
    Error loading /Library/QuickTime/EyeTV MPEG Support.component/Contents/MacOS/EyeTV MPEG Support:  
    dlopen(/Library/QuickTime/EyeTV MPEG Support.component/Contents/MacOS/EyeTV MPEG Support, 0x0106): 
    code signature in (/Library/QuickTime/EyeTV MPEG Support.component/Contents/MacOS/EyeTV MPEG Support) 
    not valid for use in process: mapped file has no cdhash, completely unsigned? 
    Code has to be at least ad-hoc signed.


Any idea why I get this error or how I can solve it? 

Thank you!
If you move "EyeTV MPEG Support.component" out of the /Library/QuickTime directory (to say your desktop) your Terminal should stop complaining about that component.  I had same issue.