Not able to create vector index

CREATE INDEX `testcolorRGBVector_13` ON test.s1.c1(color, descriptionVector VECTOR) USING GSI  WITH {'defer_build': False, "dimension":384, "train_list":1024, "description": "IVF1000,PQ8x8", "similarity":"L2", "nprobes":3};}

_sequence_num	_sequence_query	_sequence_query_status	_sequence_result1	"CREATE INDEX `testcolorRGBVector_13` ON test.s1.c1(color, descriptionVector VECTOR) USING GSI  WITH {'defer_build': False, \"dimension\":384, \"train_list\":1024, \"description\": \"IVF1000,PQ8x8\", \"similarity\":\"L2\", \"nprobes\":3};"	"Internal Server Error"	[{"code":5000,"msg":"GSI CreateIndex() - cause: 0:ErrTraining: Number of qualifying/valid vectors 0 are less than the number of vectors 1000 required for training 1000 centroids \n\n","reason":{"_level":"exception","caller":"secondary_index:681","cause":{"error":"0:ErrTraining: Number of qualifying/valid vectors 0 are less than the number of vectors 1000 required for training 1000 centroids","source":"CreateIndex()"},"code":4350,"key":"indexing.error","message":"GSI error"},"query":"CREATE INDEX `testcolorRGBVector_13` ON test.s1.c1(color, descriptionVector VECTOR) USING GSI  WITH {'defer_build': False, \"dimension\":384, \"train_list\":1024, \"description\": \"IVF1000,PQ8x8\", \"similarity\":\"L2\", \"nprobes\":3};"}]