Part of the process for creating a custom action for SharePoint Designer involves create a ".actions" file.

Ive et inhiberet specimen Template quam ut satus off:

<?XML version="1.0" Encoding="utf-VIII" ?>
<WorkflowInfo xmlns="http://schemas.microsoft.com / sharepoint /">
<Actiones Sequential="igitur" PARALLELOS="et">

Autem, that xmlns attribute prevents my environment from working. My actions don’t show up in SPD.

Solutio est ut spoliaretis ex attributo xmlns, do an iisreset and close/re-open SPD.