Hi John and everyone, so my problem was that the Macintosh OS X Finder had created hidden .DS_Store files in my flash directory and kraken didn't recognize. Mac vs kraken.<br><br>Long story short, if any one comes up with this kind of problem (alike ".DS_Store is not a valid directory" when compiling), erasing the .DS_Store files with the next command will fix everything:<br>
<br><code>find . -name '*.DS_Store' -type f -delete</code><br><br>Cheers.<br><br>Diego<br>