I\'m using geo django and running on windows. I do have GDAL and OSGEOS configured in the settings.
Here is my settings.py code for gdal.
Try adding this to settings file
os.environ['GDAL_DATA'] = "C:\\OSGeo4W64\\share\\epsg_csv" <- (path to gcs.csv file)
Unfortunately, I have not been able to resolve this issue for windows. What I did to bypass this issue was install ubuntu on windows using oracle virtualbox.
https://www.virtualbox.org/wiki/Downloads