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04-05-2021 01:54 PM
Windows 10 64 bit - neo4J 1.4.3
I have both Java 1.8.0_281 and jdk-16_windows-x64 installed
Path=C:\Program Files\Java\jdk-11.0.10\bin\server;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32; ....
Trying to start either the Console or the Service-
VERBOSE: Java detected at 'C:\Program Files (x86)\Java\jre1.8.0_281\bin\java.exe'
VERBOSE: Invoking "C:\Program Files (x86)\Java\jre1.8.0_281\bin\java.exe" -version 2>&1
VERBOSE: Command returned with exit code 0
VERBOSE: Java version response: java version "1.8.0_281"
Java(TM) SE Runtime Environment (build 1.8.0_281-b09)
VERBOSE: Java Version detected as 1.8.0_281
WARNING: ERROR! Neo4j cannot be started using java version 1.8.0_281
Now if I remove 1.8 leaving JDK 11, neo4j fails saying it can't find 1.8.
If I have 1.8 installed it says it can't use it.
I'm in some kind of configuration funk and could use some help
TIA
04-05-2021 03:10 PM
Hi @bscola
I think Neo4j 1.4.3 means Neo4j Desktop, not Community/Enterprise.
The Neo4j Desktop already includes Java 8/11.
C:\Program Files\Neo4j Desktop\resources\offline\java
zulu8.48.0.53-ca-jdk8.0.265-win_x64
zulu11.41.23-ca-jdk11.0.8-win_x64
Neo4j 3.5.x uses Java 8 and Neo4j 4.x uses Java 11.
You can set the path so that the installed Java is not read first.
04-06-2021 09:28 AM
Let's try again...
PATH=C:\Program Files\Java\jdk-11.0.10\bin\server;C:\Windows\system32; ....
Note Java JDK11 is in the start of the path. Java 8 is not in the path
Trying to start-
neo4j console -verbose
VERBOSE: Neo4j Root is 'C:\Neo4j'
VERBOSE: Neo4j Server Type is 'Community'
VERBOSE: Neo4j Version is '4.2.4'
VERBOSE: Neo4j Database Mode is ''
VERBOSE: Console command specified
VERBOSE: Java detected at 'C:\Program Files (x86)\Java\jre1.8.0_281\bin\java.exe'
VERBOSE: Invoking "C:\Program Files (x86)\Java\jre1.8.0_281\bin\java.exe" -version 2>&1
VERBOSE: Command returned with exit code 0
VERBOSE: Java version response: java version "1.8.0_281"
Java(TM) SE Runtime Environment (build 1.8.0_281-b09)
Java HotSpot(TM) Client VM (build 25.281-b09, mixed mode)
VERBOSE: Java Version detected as 1.8.0_281
WARNING: ERROR! Neo4j cannot be started using java version 1.8.0_281
WARNING: * Please use Oracle(R) Java(TM) 11, OpenJDK(TM) 11 to run Neo4j Server.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
what do I need to do with my path or my Java installation to get the Console/Service to run ??
Thanks
04-06-2021 02:55 PM
OK ---- After uninstalling Java 1.8 the Console is now starting ----
But the Service won't start. Does it really have to be this hard ??
11-01-2021 11:14 AM
I'm just getting started with Neo4j and ran into the same issue. Since I had some random JREs installed by Ninite when I set up the system, I downloaded the JDK11 from the java homepage to be sure.
Into system variables I added the user variable "JAVA_HOME" with the value "C:\Program Files\Java\jdk-11.0.12" (or wherever the directory is saved for you). I did not modify the path variable by the way. This solved the problem for me.
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