Merge pull request #1566 from weaviate/20250225-suggest-updated-error

Suggestion re: error msg

Author: tsmith023

integration/test_named_vectors.py

@@ -767,15 +767,15 @@ def test_deprecated_syntax(collection_factory: CollectionFactory):
             target_vector=["first", "second", "second"],
             return_metadata=wvc.query.MetadataQuery.full(),
         )
-    assert "Providing lists of lists has been deprecated" in str(e)
+    assert "This input appears to be a nested list of embeddings." in str(e)
 
     with pytest.raises(WeaviateInvalidInputError) as e:
         collection.query.near_vector(
             [[0.0, 1.0], [1.0, 0.0, 0.0]],
             target_vector=["first", "second"],
             return_metadata=wvc.query.MetadataQuery.full(),
         )
-    assert "Providing lists of lists has been deprecated" in str(e)
+    assert "This input appears to be a nested list of embeddings." in str(e)
 
 
 @pytest.mark.parametrize(

weaviate/collections/grpc/shared.py

@@ -151,8 +151,10 @@ def _vector_per_target(
                 return None, struct.pack("{}f".format(len(near_vector)), *near_vector)
             else:
                 raise WeaviateInvalidInputError(
-                    """Providing lists of lists has been deprecated. Please provide a dictionary with target names as
-                    keys and lists of numbers as values."""
+                    """This input appears to be a nested list of embeddings.
+                    If you are trying to search with a multi-vector embedding, check the shape of your input.
+                    If you are trying to provide multiple target vectors,
+                    provide a dictionary with target names as keys and embeddings as values."""
                 )
 
     def _vector_for_target(
@@ -282,8 +284,10 @@ def add_list_of_vectors(value: _ListOfVectorsQuery, key: str) -> None:
                 return None, struct.pack("{}f".format(len(near_vector)), *near_vector), None
             else:
                 raise WeaviateInvalidInputError(
-                    """Providing lists of lists has been deprecated. Please provide a dictionary with target names as
-                    keys and lists of numbers as values."""
+                    """This input appears to be a nested list of embeddings.
+                    If you are trying to search with a multi-vector embedding, check the shape of your input.
+                    If you are trying to provide multiple target vectors,
+                    provide a dictionary with target names as keys and embeddings as values."""
                 )
 
     def _parse_near_options(