I'm installing Camunda 8 Run to be able to run processes in BPMN. I have already installed the Modeler. I extract the file and open the terminal in the corresponding folder in order to run the command .\c8run start to run it. The run doesn't start, and this comes out:

Java version is C:\Program Files\Java\jdk-21
You must use at least JDK 21 to start Camunda Platform Run.

This seems like a clear nonsense to me. That is, it's telling me that I have Java 21, but to use Camunda I have to install Java 21. But that doesn't make any sense, I mean I can't see where the problem is. Yes, I have already checked all the environment variables, I only have one version of Java installed and there is no conflicting file. Can anyone help me with this? It's about my thesis

I'm installing Camunda 8 Run to be able to run processes in BPMN. I have already installed the Modeler. I extract the file and open the terminal in the corresponding folder in order to run the command .\c8run start to run it. The run doesn't start, and this comes out:

Java version is C:\Program Files\Java\jdk-21
You must use at least JDK 21 to start Camunda Platform Run.

This seems like a clear nonsense to me. That is, it's telling me that I have Java 21, but to use Camunda I have to install Java 21. But that doesn't make any sense, I mean I can't see where the problem is. Yes, I have already checked all the environment variables, I only have one version of Java installed and there is no conflicting file. Can anyone help me with this? It's about my thesis

• java
• camunda
• bpmn

Share Improve this question Follow asked Mar 20 at 15:51 Fonz ZaFonz Za 1133 bronze badges 1

• Make sure the JAVA_VERSION environment variable is set for the version (21) and not to the actual Java home path – Bernd Ruecker Commented Mar 26 at 9:23

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Download the latest version of C8Run (8.6.9 at least), and check if you have set both JAVA_HOME and JAVA_VERSION