Troubles uploading a mapping file

[darjascherbina17-blip]

Hello everybody,
I was wondering if you could help me with some issues I've had while trying to upload an already existing mapping.ttl file in the "Global Configuration" Section. Whenever I try to upload a ttl file, even if the turtle syntax is correct, I keep getting this error in return:

File contains no section headers. file: '3xtudio_files_temp/mapping_from_file.ttl', line: 1 '@Prefix rr: .\n'.

I have tried to change the namespaces, I've tried changing the way it is written, I've made sure the file itself is saved as "UTF-8" without BOM. I also tried to write out the namespaces without copying them from somewhere, so the angled brackets aren't changed into html, but that didn't work either. Maybe i am overlooking something? Thank you in advance, I think this tool is a really interesting idea!

Here's my process:
In order to get 3xtudio to work, I had to change every instance of "translate_to_rml" in the utils.py file to "materialize", otherwise I would have gotten this error when trying to open 3xtudio: ImportError: cannot import name 'translate_to_rml' from 'morph_kgc'.

My current python version is 3.13.11.

After I was able to open 3xtudio, I created a mapping in global configuration. Then I wanted to upload an exisiting mapping file, but that did not work. As far as I understand, 3xtudio cannot see the IRIS provided in the mapping. That is as far as I got. My Syntax was along the lines of this; except the @Prefix was always written in lowercase.

@prefix rr: <http://ww.w3.org/ns/r2rml#> .
@prefix rml: <http://semweb.mmlab.be/ns/ql#> .
@prefix ql: <http://semweb.mmlab.be/ns/ql#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ex: <https://company.com/id/000/abc#> .

<#ABCD_Vocabulary>
    rml:logicalSource [
        rml:query """
            SELECT *
            FROM read_csv('./tmp/data.tsv', delim='\t', auto_detect=true, all_varchar=1)
        """
    ];
    rr:subjectMap [
        rr:constant <https://company.com/id/000/abc>;
		rr:class skos:ConceptScheme;
    ];
	rr:predicateObjectMap [
        rr:predicate skos:hasTopConcept;
        rr:objectMap [
            rr:template "https://company.com/id/000/abc{Code}";
        ];
    ];
.

[arenas-guerrero-julian]

Hi,

This is probably due to the version of morph-kgc. To import mappings you need to install the latest version of morph-kgc directly from the GitHub repository:

pip install git+https://github.com/morph-kgc/morph-kgc.git

This is because we are using some functions in morph-kgc that are not available in its latest release. This will be solved when we make the first stable release of 3xtudio, which will be soon.

[darjascherbina17-blip]

Hello,
thank you for your quick answer!

[darjascherbina17-blip]

Hello again, did I understand correctly that at the moment, I cannot use 3xtudio?

[arenas-guerrero-julian]

You can use it, but you need to install morph-kgc as indicated above.

[darjascherbina17-blip]

You can use it, but you need to install morph-kgc as indicated above.

Hello, I have installed the latest version of morph-kgc as you told me, but I am still getting the same error, even when I try other short mapping files as a test, like this one:
@Prefix rr: http://www.w3.org/ns/r2rml# .
@Prefix rml: http://semweb.mmlab.be/ns/rml# .
@Prefix ql: http://semweb.mmlab.be/ns/ql# .
@Prefix : http://example.com/ .

:TriplesMap1
rml:logicalSource [
rml:source "data.csv" ;
rml:referenceFormulation ql:CSV
] ;

rr:subjectMap [
    rr:template "http://example.com/{id}" ;
    rr:class :TestClass
] ;

rr:predicateObjectMap [
    rr:predicate :name ;
    rr:objectMap [ rml:reference "name" ]
] .

Is there anything else I could try? If not, I'll just wait for the new release of 3xtudio, thank you again!