Le portail francophone de la géomatique

j'utilise featureserver avec openlayers en cas ou je fais un test d'envoye des données vers le serveur j'ai eu ces erreurs:

An error occurred: No layer blocks on datasource:
  File "/var/www/featureserver/FeatureServer/Server.py", line 264, in cgiHandler

    service = Server.load(*cfgfiles)

  File "/var/www/featureserver/FeatureServer/Server.py", line 69, in _load

    config, section, 'DataSource')

  File "/var/www/featureserver/FeatureServer/Server.py", line 49, in _loadFromSection

    return objclass(section, **objargs)

  File "/var/www/featureserver/FeatureServer/DataSource/OGR.py", line 55, in __init__

    self.layer  = self.ds.GetLayerByName(layer)

  File "/usr/lib/python2.5/site-packages/ogr.py", line 311, in GetLayerByName

    raise OGRError, 'No layer %s on datasource' % name