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I created a Neo4j Community Edition instance on google cloud from the marketplace and when I tested it from my local application I got the following error: Error: Unknown function 'apoc.cypher.runFirstColumn' (...)

I did some digging and found out that APOC was not installed on the cloud instance. I tried to install it via an ssh connection but I can't seem to get it to work.

I am pretty sure that APOC should come preinstalled. Am I missing something? Any help would be appreciated.

kappaisagreekletter
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1 Answers1

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An important thing to note about cloud version of neo4j is that you should not modify the /etc/neo4j/neo4j.conf file directly, but rather modify /etc/neo4j/neo4j.template. The system service that restarts neo4j calls a shell script called pre-neo4j.sh.

https://neo4j.com/developer/neo4j-cloud-vms/

I modified the neo4j.conf file directly. Oops... Leaving this here in case someone else does this.

(edit) This was not the problem. https://stackoverflow.com/a/56227465/15118442 this helped fix the problem. Btw, apoc still does not come preinstalled with CGP instance from the marketplace. You have to install apoc yourself. And for initialization I recommend the above stackoverflow link.

kappaisagreekletter
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  • BTW I figured out that apoc does come with neo4j in GCP. It is located at /var/lib/neo4j/labs. Just mv that to /var/lib/neo4j/plugins and restart neo4j. The above changes to neo4j.conf is still necessary though. –  kappaisagreekletter Aug 12 '21 at 18:32