while trying to create index from nodes

while trying to create index from nodes

running into this error when no of documents is more

TypeError Traceback (most recent call last)
Input In [11], in <cell line: 1>()
----> 1 index = VectorStoreIndex(nodes, service_context=service_context)
2 index.storagecontext.persist("./storageall"+str(len(documents)))

File ~/anaconda3/lib/python3.9/site-packages/llama_index/indices/vector_store/base.py:52, in VectorStoreIndex.init(self, nodes, index_struct, service_context, storage_context, use_async, store_nodes_override, insert_batch_size, show_progress, kwargs) 50 self._store_nodes_override = store_nodes_override 51 self._insert_batch_size = insert_batch_size---> 52 super().init( 53 nodes=nodes, 54 index_struct=index_struct, 55 service_context=service_context, 56 storage_context=storage_context, 57 show_progress=show_progress, 58 kwargs,
59 )

File ~/anaconda3/lib/python3.9/site-packages/llama_index/indices/base.py:51, in BaseIndex.init(self, nodes, index_struct, storage_context, service_context, show_progress, **kwargs)
49 raise ValueError("Only one of nodes or index_struct can be provided.")
50 # This is to explicitly make sure that the old UX is not used
---> 51 if nodes is not None and len(nodes) >= 1 and not isinstance(nodes[0], BaseNode):
52 if isinstance(nodes[0], Document):
53 raise ValueError(
54 "The constructor now takes in a list of Node objects. "
55 "Since you are passing in a list of Document objects, "
56 "please use from_documents instead."
57 )

TypeError: 'dict_values' object is not subscriptable