arcpy - Why can't I open this workspace?

I used python add in to make a tool bar in Arcmap that edits features on a map. It works on a file geodatabase, but not on an ArcSDE version one. I've been getting an FDO error: 0. The solutions that I've found all involve opening a workspace, but I'm getting an error doing that as well. Here is the relevant portion of my code:

        outFolderPath = r"U:\tempStuff"
        outName = "Stuff.sde"
        databasePlatform = "SQL_Server"
        instance = "SQL Server"
        arcpy.CreateDatabaseConnection_management(outFolderPath, outName,
                                                  databasePlatform,
                                                  instance)

        print "Centroid of buidling:(%r,%r) Side length: %r" % (xCoordinate,
                                                                yCoordinate,
                                                                bob)
        print "workspace is %r" % outName #outName is workspace

        #Start edit session with an undo/redo stack then start
        #edit operation
        print "Starting editing"
        edit = arcpy.da.Editor(outName) #outName is workspace Line 86
        edit.startEditing(True, True)

        edit.startOperation()

        #stuff happens

        cursor = arcpy.da.InsertCursor( fc, ["SHAPE@"])
        cursor.insertRow([stuff])
            #stop the edit operation and then save changes
        edit.stopOperation()
        edit.stopEditing(True)


        del cursor
        print "Building should be drawn"

This is the exact error I've been getting:

Traceback (most recent call last):
  File "C:\Users\153289\AppData\Local\ESRI\Desktop10.3\AssemblyCache\{0BEF4E61-6332-4BCA-A908-959CA3C0B4E7}\leetScripts_addin.py", line 86, in onClick
    edit = arcpy.da.Editor(outName)#outName is workspace
RuntimeError: cannot open workspace

What's am I doing wrong in my code?

Answer

Looks like you are not referencing the full path to your newly created SDE connection. Try this:

edit = arcpy.da.Editor(os.path.join(outFolderPath, outName))