Re: [gdal-dev] "Cannot open existing output data source" error writing to GML

2012-02-02 Thread Frank Warmerdam
Donovan, The problem is that the GML driver does not support "in place" update or append support for GML files. So you can't use the -update -append options of ogr2ogr with an output GML file. Instead you will need to collect your input files into one output file in another format that does supp

[gdal-dev] "Cannot open existing output data source" error writing to GML

2012-02-02 Thread Donovan Cameron
Afternoon List! I am trying to batch merge several GML files but get the following error: *Cannot open existing output data source: output.gml* I can read the file fine with "*ogrinfo output.hml output -so*" and everything looks normal. I am able to perform the operation successfully without err