“Happened constantly when saving to network drive. Moving files locally fixed it instantly.” “Solution #4 (permissions) worked after IT gave me write access to the project folder.” “Still occurs occasionally on Windows 10 with AutoCAD 2013 – compatibility mode for Windows 7 helped.”
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If you have tried all seven solutions and still see “Make sure you can write to current directory,” consider: Make Sure You Can Write To Current Directory Autocad 2013