build error gradlew assemble

Hi Anton, good afternoon, I am trying to create my .jar following the instructions in the documentation but I get an error for which I have found a solution online but when I look for the file tools.jar in both the java jre and java sdk folders, I can't find it , any ideas

> Task :compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Could not find tools.jar. Please check that C:\Program Files (x86)\Java\jre1.8.0_321 contains a valid JDK installation.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s
5 actionable tasks: 1 executed, 4 up-to-date

Looks like some error with JDK. Do you actually have JDK installed and configured correctly? It looks like JRE.

if so both installed JDK version 18 and 11, JRE 1.8.0_321

https://ibb.co/KL9yMfd

search for the error online as commented above and found that tools.jar no longer exists since java JRE 9

So far I haven't made any changes to the code, I'm just trying to create my own tracker-server.jar to later make the necessary modifications.

That's why I said and configured correctly. Based on the output it looks like it's using JRE 1.8.

Hello Anton, again you were right, the environment variables were misconfigured, it seems that I only have one doubt left. BUILD SUCCESSFUL sent me a message, I concluded that everything went well, but I cannot find the tracker-server.jar file, where is said file saved?

is this the correct location?

C:\Users\Manuel\Desktop\traccar\traccar\target

Microsoft Windows [Versión 10.0.19043.1586]
(c) Microsoft Corporation. Todos los derechos reservados.

C:\Users\Manuel\Desktop\traccar\traccar>gradlew assemble
Starting a Gradle Daemon, 3 incompatible and 1 stopped Daemons could not be reused, use --status for details

> Task :compileJava
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

BUILD SUCCESSFUL in 1m 29s
7 actionable tasks: 3 executed, 4 up-to-date
C:\Users\Manuel\Desktop\traccar\traccar>

It should be in the target folder.

thanks Anton as always a great support greetings and encouragement with the project that is great