Gradle Could not find tools.jar

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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.

Spaceport answered 13/8, 2015 at 13:6 Comment(3)

Can you please include the screenshots and error log in your post? – Shields 13/8, 2015 at 13:8

I did they are at the links prntscr.com/845kyx and pastebin.com/ugdfySg1 – Spaceport 13/8, 2015 at 13:9

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. – Shields 13/8, 2015 at 13:19

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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

Fragrance answered 13/8, 2015 at 13:15 Comment(2)

i think you can elaborate this answer, like how to set system property in linux etc – Admixture 23/4, 2017 at 7:13

Also add the following command: export PATH="${PATH}:${JAVA_HOME}/bin" – Devonna 4/8, 2021 at 22:40

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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.

Bartonbartosch answered 28/3, 2016 at 19:15 Comment(3)

Not usable across several developers with different configurations! – Warenne 20/7, 2016 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. – Bartonbartosch 20/7, 2016 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/ – Evelunn 10/9, 2020 at 18:53

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For me was solution this:

yum install java-1.8.0-openjdk-devel

Or for newer CentOS/Fedora/RHEL versions:

dnf install java-devel

Creese answered 26/1, 2017 at 11:27 Comment(2)

For me that works in Fedora 24+: sudo dnf install java-1.8.0-openjdk-devel – Kendyl 7/4, 2017 at 14:19

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 – Lection 19/6, 2017 at 8:27

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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

Fragrance answered 13/8, 2015 at 13:15 Comment(2)

i think you can elaborate this answer, like how to set system property in linux etc – Admixture 23/4, 2017 at 7:13

Also add the following command: export PATH="${PATH}:${JAVA_HOME}/bin" – Devonna 4/8, 2021 at 22:40

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sudo apt-get install openjdk-7-jdk

Fixed it for me for a Jenkins job.

Socinian answered 12/1, 2016 at 0:18 Comment(3)

Alternately, sudo apt-get install openjdk-8-jdk – Nevertheless 31/12, 2016 at 20:50

At least in Ubuntu Xenial package openjdk-8-jdk-headless provides /usr/lib/jvm/java-8-openjdk-amd64/lib/tools.jar – Monti 30/11, 2020 at 10:27

On my WSL only openjdk-8-jdk has tools.jar ,openjdk-8-jdk-headless doesn't work. – Periwig 15/8, 2023 at 17:55

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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

Mortenson answered 18/2, 2018 at 18:9 Comment(0)

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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/

Elizaelizabet answered 5/7, 2021 at 22:45 Comment(0)

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