Unable to Delete Project

I too am having this error. After uninstalling and re-installing Maestro when I try to delete a workflow I get an empty dialog box that no longer has the ajax error associated with it. Still no luck in deleting the workfolow however.

This issue may have something to do with the way your site is setup. Looks like the site is in a directory under the baseurl. Still it should work but is not the way we have our sites.

Try this:
Around line 840 in maestro.module - function template_preprocess_maestro_taskconsole_details
Replace

$variables['delete_project_action'] = '<a class="ctools-modal-maestro-modal-style ctools-use-modal" href="'.$base_url .'/maestro/nojs/deleteproject/' . $task->tracking_id .'">Delete Project</a>';

with

$url = url('maestro/nojs/deleteproject/', array('query' => array('tracking_id' => $task->tracking_id)));
$variables['delete_project_action'] = '<a class="ctools-modal-maestro-modal-style ctools-use-modal" href="'. $url . '">Delete Project</a>';

This should all be fixed in the latest release.