我正在寻找使用featurizeText包裹在rxFeaturize中的停用词，但正如评论here rxFeaturize中所报告的那样，不支持停用词。有没有办法解决这个问题？错误以及代码段如下：
transformRule <- list(featurizeText(vars = c("Description"),
keepPunctuations = FALSE,
stopwordsRemover = stopwordsCustom(dataFile = generic_stopwords_list)))
rxFeaturize(data = trn_file_xdf,
mlTransform = transformRule,
mlTransformVars = c("Description"), overwrite = T)
错误：inherits(item[[k]], "node") is not TRUE