Hi there, Just started with PW3 and building out my site. I used PHPStorm & XDebug just fine with PW2.7. If I run my PW3 site without any debugging turned on, the (very) basic homepage renders fine. If I turn on Xdebug and set a breakpoint or two, all is fine until I get into PriocessWire::buildConfig() at the line that news up a Config() instance ) line #604. $config = new Config(); When I step through that line or execute it in the console, the system acts as though it can't find the Config class. In my php error log file, I get entries like: [13-Mar-2016 21:34:54 Europe/Berlin] PHP Fatal error:  Class 'ProcessWire\WireDebugInfo' not found in /Applications/MAMP/htdocs/hsa/ProcessWire/wire/core/Wire.php on line 1174 [13-Mar-2016 21:34:54 Europe/Berlin] PHP Stack trace: [13-Mar-2016 21:34:54 Europe/Berlin] PHP   1. {main}() /Applications/MAMP/htdocs/hsa/ProcessWire/index.php:0 [13-Mar-2016 21:34:54 Europe/Berlin] PHP   2. ProcessWire\ProcessWire::buildConfig($rootPath = *uninitialized*, $rootURL = *uninitialized*) /Applications/MAMP/htdocs/hsa/ProcessWire/index.php:33 [13-Mar-2016 21:34:54 Europe/Berlin] PHP   3. ProcessWire\WireData->__debugInfo() /Applications/MAMP/htdocs/hsa/ProcessWire/index.php:605[13-Mar-2016 21:34:54 Europe/Berlin] PHP   4. ProcessWire\Wire->__debugInfo() /Applications/MAMP/htdocs/hsa/ProcessWire/wire/core/WireData.php:415  It's all a bit weird. It runs without the Xdebug listening for breakpoints but turn Xdebug on and it all goes pearshaped! Any ideas/thoughts/suggestions very welcome. Cheers!