The console.log can be accessed in your browser. In chrome (I like chrome for the easy access log!) the shortcut is CRTL + SHIFT + J, in Firefow I'd recommend to use the Firebug extension.
The Tableau logs should be in this folder. Did you ever change the language of you Tableau Desktop? This might confuse a few things and you might have a second Tableau repository in you Dosuments folder. Try using the search funcion of your system and find "log.txt" somewhere on your harddrive
Also, just as a hint (because I recently had a similar issue: running connector in the simulator, but not in Tableau), have a look here after you found your logs: https://community.tableau.com/thread/195843