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When I try to convert a raster DEM (in .asc or geotiff format) to polygons I get the error below:

ERROR 4: `Y:/GIS/oversvmmelser/tmp/out.tif' does not exist in the file system, and is not recognised as a supported dataset name.

Any idea what the problem is?

screenshot

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    Typo in the path? oversvmmelser. Actually there is another path in the screen capture. It looks like QGIS eats the scandinavian characters. Use ASCII paths instead.
    – user30184
    Sep 3, 2014 at 9:59
  • Thanks @user30184. that solved it. Non ASCII characters, what a rookie mistake.
    – HC Haase
    Sep 3, 2014 at 10:33
  • One may also think that it is a bug in QGIS. Drop a mail to qgis-users mailing list. This is perhaps about the same: hub.qgis.org/issues/9080
    – user30184
    Sep 3, 2014 at 10:40
  • well you are right. But in my experience this is a generic GIS bug.
    – HC Haase
    Sep 3, 2014 at 10:49

1 Answer 1

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@user30184 came with the solution.

the (quite common GIS) problem was that non-ASCII characters (like æ ø å) in the path name gets deleted.

only use ASCII characters in file paths.

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  • ... and in your windows user name too!
    – AndreJ
    Sep 20, 2017 at 6:01

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