E dev_tools.globals.errors.XMLSyntaxError:
E .../definitions/base_classes/NXaperture.nxdl.xml
E Element '{http://definition.nexusformat.org/nxdl/3.1}group', attribute 'forbidden':
E The attribute 'forbidden' is not allowed., line 51
E dev_tools.globals.errors.XMLSyntaxError:
E .../definitions/base_classes/NXaperture.nxdl.xml
E error parsing attribute name, line 52, column 7 (NXaperture.nxdl.xml, line 52)
Closes #1266
After this PR, the following error messages are produced
XML validation error
XML syntax error