neo4j的相关问题

neo4j导入数据第一步 导入csv数据老是报错 请问什么情况
这是报错提示：A query with 'PERIODIC COMMIT' can only be executed in an implicit transaction, but tried to execute in an explicit transaction.

这是我的代码：

USING PERIODIC COMMIT 100
LOAD CSV FROM "file:///guojia.csv" AS line

CREATE (c:Contact {name:line.name, ab:line.ab,cd:line.cd })