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Java couldn't be found.... [message #1801876] Tue, 29 January 2019 03:52 Go to next message
Paul Santos is currently offline Paul SantosFriend
Messages: 1
Registered: January 2019
Junior Member
I am trying to install eclipse, but I keep getting the following message:

Quote:
Unfortunately the Java version needed to run Eclipse Installer couldn't be found on your system. You need the following version or a higher version:


I am sure that I have the 64-bit version of the jre installed, as it is in the Program Files folder.

I also have the path set correctly. Powershell returns the following when I enter "java -version":

(actually I'm not allowed to include links as a new user)

I'm at a loss as to what to do from here. Further searches only reveal the above two as the most common problems.
Re: Java couldn't be found.... [message #1801909 is a reply to message #1801876] Tue, 29 January 2019 13:37 Go to previous messageGo to next message
Nitin Dahyabhai is currently offline Nitin DahyabhaiFriend
Messages: 3840
Registered: July 2009
Senior Member

Why would you need a link to show us the command line output?

Nitin Dahyabhai
Eclipse Web Tools Platform
Re: Java couldn't be found.... [message #1801912 is a reply to message #1801909] Tue, 29 January 2019 13:49 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 31476
Registered: July 2009
Senior Member
And could you post the complete exact path of where Java is installed on your machine. You should not need to set any system paths; the installer looks in the system registry...

Ed Merks
Professional Support: https://www.macromodeling.com/
Re: Java couldn't be found.... [message #1802026 is a reply to message #1801912] Thu, 31 January 2019 07:01 Go to previous messageGo to next message
Larry Cai is currently offline Larry CaiFriend
Messages: 1
Registered: January 2019
Junior Member
Not OP but I have the exact same issue.

I did not have JAVA before, but I installed JDK 11.02 according to the URL provided, with all default installation options. I have restarted the system.

C:\Program Files\Java\jdk-11.0.2

I have verified that JAVA is properly installed with both the JAVA control panel and with CMD java -version

java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) Client VM (build 25.171-b11, mixed mode)


Re: Java couldn't be found.... [message #1802039 is a reply to message #1802026] Thu, 31 January 2019 08:46 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 31476
Registered: July 2009
Senior Member
The installer looks in the system registry, so if you only unzipped the Java 11 SDK but didn't install it,the installer won't find it. :-(

The Java 8 you do have installed is a 32 bit version, and that doesn't work. The installer also checks the system path, but as you notice, that points at Java 8 and is 32 bit. So you need to manually change the system path...



Ed Merks
Professional Support: https://www.macromodeling.com/
Re: Java couldn't be found.... [message #1831694 is a reply to message #1802039] Wed, 26 August 2020 17:52 Go to previous message
Azer Khan is currently offline Azer KhanFriend
Messages: 1
Registered: August 2020
Junior Member
Saw this and while the above folks are right, somehow my default installation was 32-bit.

Go to console and write: "java -d64"

If the output says: "Error: This java instance does not support a 64-bit JVM." that means you need to uninstall java and then reinstall (just use the eclipse options).

To uninstall (Windows 10), go to Apps & Features, Search 'Java' and just hit uninstall.

Get the right version and you should be good to go :)
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