So I'm going through the tutorial quest and have reach the section on setting the map marker. Evertime i try to create the Dungeon Marker Object Reference, I get an error and the scrpit is not created. Here is the error.

Starting 1 compile threads for 1 files...
Compiling "QF_GSQ01_01000D62"...
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(58,25): script property DungeonMarker already defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(58,25): script variable ::DungeonMarker_var already defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(58,25): script property DungeonMarker already has a get function defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(58,25): script property DungeonMarker already has a set function defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(60,25): script property DungeonMarker already defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(60,25): script variable ::DungeonMarker_var already defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(60,25): script property DungeonMarker already has a get function defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(60,25): script property DungeonMarker already has a set function defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(62,25): script property DungeonMarker already defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(62,25): script variable ::DungeonMarker_var already defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(62,25): script property DungeonMarker already has a get function defined
c:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\QF_GSQ01_01000D62.psc(62,25): script property DungeonMarker already has a set function defined
No output generated for QF_GSQ01_01000D62, compilation failed.

Batch compile of 1 files finished. 0 succeeded, 1 failed.
Failed on QF_GSQ01_01000D62


So i have no clue what's causing this, I'm brand new to this and i would eb grateful for any help.