Hello,

I'm trying to upload a Microsoft Word Template (.dotx) file and I'm getting this error:

{"entity-type":"exception","status":404,"message":"Preview not available"}

here is the logs:

2020-10-11T01:54:08,606 WARN  [Nuxeo-Work-default-4:143541401185797.881780315] [org.nuxeo.ecm.platform.thumbnail.factories.ThumbnailDocumentFactory] Cannot compute document thumbnail
org.nuxeo.ecm.core.convert.api.ConversionException: application/vnd.openxmlformats-officedocument.wordprocessingml.template mime type not supported by anyToThumbnail converter
at org.nuxeo.ecm.core.convert.service.ConversionServiceImpl.convert(ConversionServiceImpl.java:323) ~[nuxeo-core-convert-10.10.jar:?]
at org.nuxeo.ecm.platform.thumbnail.factories.ThumbnailDocumentFactory.computeThumbnail(ThumbnailDocumentFactory.java:92) [nuxeo-thumbnail-10.10.jar:?]

I found this documentation about thumbnail converter and I override it by adding “dotx” sourceMimeType as in the attached file:

          <sourceMimeType>
        application/vnd.openxmlformats-officedocument.wordprocessingml.template
            </sourceMimeType>

but I'm getting this warning and the error still showing up:

= Component Loading Errors:
  * Warning: target extension point 'converter' of 'org.nuxeo.ecm.platform.thumbnail.convert' is unknown. Check your extension in component service:org.nuxeo.ecm.platform.thumbnail.convert.override

what I'm missing?

Thank you.