Exactly the same goes for me. Yesterday, everything was fine. I did get the latest patch today and now I get the error message (looked for it in the launcher log):
showError(‘Client launch failure’, ‘Could not find file /Users//Library/Application Support/EVE Online/p_drive/Local Settings/Application Data/CCP/EVE/SharedCache//wine/bin/wine64’, 10)
I did take a look into that folder and did find some files: notepad, regedit, wine, winecfg, […]. But no wine64
Then I deinstalled the EVE Launcher App, deleted the directories ~/Library/Application Support/CCP and ~/Library/Application Support/EVE Online
Afterwards I downloaded the EVE Launcher, put it into /Applications, started the Launcher. The Launcher had to download the full EVE client files. I logged in, then I tried to start EVE Online, but the same error appeared again.
I took another look into the […]/EVE/SharedCache//wine/bin/ directory, but still no wine64 file.
Now I am a little bit lost, I never tried to start EVE online via command line, but I do guess that might be possible.
Anyone that could solve the problem?