Trace:
Caught exception: Project has no document root folder:
#0 /usr/share/tuleap/plugins/docman/include/DocmanLegacyController.php(76): Tuleap\Docman\ExternalLinks\DocmanHTTPControllerProxy->process(Object(HTTPRequest), Object(PFUser))
#1 /usr/share/tuleap/src/common/Request/FrontRouter.php(242): Tuleap\Docman\DocmanLegacyController->process(Object(HTTPRequest), Object(FlamingParrot_Theme), Array)
#2 /usr/share/tuleap/src/common/Request/FrontRouter.php(109): Tuleap\Request\FrontRouter->routeHandler(Object(HTTPRequest), Object(Tuleap\Docman\DocmanLegacyController), Array)
#3 /usr/share/tuleap/src/www/index.php(49): Tuleap\Request\FrontRouter->route(Object(HTTPRequest))
#4 {main}