Gradle Could not find tools.jar

Question

I am trying to make a game with LibGdx. I love it! It is sooo simple and a lot better than JME3 and LWJGL. But trying to package it I am having an error. Here is an image of the gui for Gradle: http://prntscr.com/845kyx and here is a the full debug error: http://pastebin.com/ugdfySg1 Now I don't know how to debug those errors and what not, so I hope someone can help. I have also tried to re-create the entire project, and make it a eclipse valid project, instead of just Gradle. None of that worked.

Can you please include the screenshots and error log in your post? — dunni, Aug 13 '15 at 13:08
I did they are at the links http://prntscr.com/845kyx and http://pastebin.com/ugdfySg1 — Fishy, Aug 13 '15 at 13:09
I meant if you could include them directly, not as links. If these services are defunct, your question and the answers become useless for others with the same problem. — dunni, Aug 13 '15 at 13:19

score 36 · Answer 1 · answered Mar 28 '16 at 19:15

36

I have a file called gradle.properties at the root of my project with the following property:

org.gradle.java.home=C:\\Program Files\\Java\\jdk1.8.0_74

org.gradle.java.home needs to point to a valid JDK location.

Without this file, I get the same error (Could not find tools.jar). With the file present, this is no longer an issue.

answered Mar 28 '16 at 19:15

Philippe

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Not usable across several developers with different configurations! – Markus L Jul 20 '16 at 12:41
@MarkusL your statement is correct. Each developer must create his or her own gradle.properties. The file is not intended for sharing. – Philippe Jul 20 '16 at 13:19
this worked for me when i set it to this in the gradle.properties ```org.gradle.java.home=/usr/lib/jvm/default-java/``` – Martin Naughton Sep 10 '20 at 18:53

score 28 · Answer 2 · edited Apr 23 '20 at 19:19

28

For me was solution this:

yum install java-1.8.0-openjdk-devel

Or for newer CentOS/Fedora/RHEL versions:

dnf install java-devel

edited Apr 23 '20 at 19:19

Chris Conlan

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answered Jan 26 '17 at 11:27

Rohlik

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For me that works in Fedora 24+: `sudo dnf install java-1.8.0-openjdk-devel` – joseluisq Apr 07 '17 at 14:19
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Faced same issue while I was trying to install voldemort kv store on centos 7.2 yum install java-1.8.0-openjdk-devel solved for me – Carbonrock Jun 19 '17 at 08:27

score 19 · Accepted Answer · edited Apr 13 '20 at 10:25

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You have to set the system property "java.home" and the environment variable JAVA_HOME to a valid JDK.

To set the environment variable run: export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64

edited Apr 13 '20 at 10:25

widavies

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answered Aug 13 '15 at 13:15

sglahn

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i think you can elaborate this answer, like how to set system property in linux etc – iamsaksham Apr 23 '17 at 07:13
Also add the following command: `export PATH="${PATH}:${JAVA_HOME}/bin"` – Loich Aug 04 '21 at 22:40

score 14 · Answer 4 · edited Jan 12 '16 at 08:40

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sudo apt-get install openjdk-7-jdk

Fixed it for me for a Jenkins job.

edited Jan 12 '16 at 08:40

Ahmed Ashour

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answered Jan 12 '16 at 00:18

infiniteloop

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Alternately, `sudo apt-get install openjdk-8-jdk` – sage Dec 31 '16 at 20:50
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At least in Ubuntu Xenial package `openjdk-8-jdk-headless` provides `/usr/lib/jvm/java-8-openjdk-amd64/lib/tools.jar` – vesperto Nov 30 '20 at 10:27
On my WSL only `openjdk-8-jdk` has tools.jar ,`openjdk-8-jdk-headless` doesn't work. – Tamaki Sakura Aug 15 '23 at 17:55

score 7 · Answer 5 · answered Feb 18 '18 at 18:09

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If we already have a lot of different distro answers I might as well add the Arch answer:

sudo pacman -S jdk8-openjdk

answered Feb 18 '18 at 18:09

bodand

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score 1 · Answer 6 · answered Jul 05 '21 at 22:45

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This works for me as a temporary solution. At the root of my project in "gradle.properties" file I have line:

org.gradle.java.home=/usr/lib/jvm/default-java/

answered Jul 05 '21 at 22:45

despotbg

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Gradle Could not find tools.jar

6 Answers6