Traceback (most recent call last): File "src/run.py", line 310, in main() File "src/run.py", line 292, in main result = tgnews.perform(args=args) File "src/run.py", line 162, in perform clusters_ids = classifier.predict(x=texts[lang]) File "./src/tglib/models/news_aggregator.py", line 31, in predict vectors = self.vectorizer.transform(x=x) File "./src/tglib/vectorizer.py", line 50, in transform return self.vectorizer.transform(raw_documents=cleaned) File "./venv/lib/python3.7/site-packages/sklearn/feature_extraction/text.py", line 1895, in transform return self._tfidf.transform(X, copy=False) File "./venv/lib/python3.7/site-packages/sklearn/feature_extraction/text.py", line 1490, in transform X = check_array(X, accept_sparse='csr', dtype=FLOAT_DTYPES, copy=copy) File "./venv/lib/python3.7/site-packages/sklearn/utils/validation.py", line 570, in check_array context)) ValueError: Found array with 0 sample(s) (shape=(0, 58742)) while a minimum of 1 is required.