RuntimeError: [json.exception.type_error.302] type must be number, but is string是什么 问题，如何解决？

[jingmouren]

样例的papers = interactive.execute("g.V().has('author', 'id', 2).out('writes').where(__.in('writes').has('id', 4307)).count()").one()
能够执行，统计节点数与边数也可以
但执行这句sub_graph = interactive.subgraph("g.V().has('year', inside(2014, 2020)).outE('cites')")
时报错
RuntimeError: [json.exception.type_error.302] type must be number, but is string

[sighingnow]

Hi @jingmouren, could you provide us more information about the versions of graphscope and vineyard ? You could know the version string by

>>> import vineyard
>>> print(vineyard.__version__)
>>> import graphscope
>>> print(graphscope.__version__)

[jingmouren]

graphscope:0.1.1
vineyard:0.1.6

[sighingnow]

graphscope-0.1.1 requires vineyard-0.1.4. You could install that version via:

pip3 install vineyard==0.1.4

After reinstall vineyard the problem should be fixed.