JDK for Ghidra give me Error: "Could not find or load main class LaunchSupport"

Question

I downloaded JDK 15 for my windows 10 64 bit pc and put the environment variable JAVA-HOME correct and the PATH also. This give me in cmd:

    C:\Users\patpin>java -version
    java version "15.0.2" 2021-01-19
    Java(TM) SE Runtime Environment (build 15.0.2+7-27)
    Java HotSpot(TM) 64-Bit Server VM (build 15.0.2+7-27, mixed mode, sharing)

When I start Ghidra (even as admin) I get:

    Error: Could not find or load main class LaunchSupport
    Caused by: java.lang.ClassNotFoundException: LaunchSupport
    Error: Could not find or load main class LaunchSupport
    Caused by: java.lang.ClassNotFoundException: LaunchSupport
    Error: Could not find or load main class LaunchSupport
    Caused by: java.lang.ClassNotFoundException: LaunchSupport

Failed to find a supported JDK. Please refer to the Ghidra Installation Guide's Troubleshooting section.

Answer 1

Maybe this issue can be solved by updating the lunch.properties file.

First, try to fullfil their minimal requirements. According to ghidra's documentation

• Current Ghidra 9.2.2 need Java 11 64-bit Runtime and Development Kit (JDK)
• So, it is better to install java 11 64 bit.

If ghidra fails to locate the jdk, then force it by-

• To launch with a specific version of Java, set the JAVA_HOME_OVERRIDE property in the support/launch.properties file. If this property is set to an incompatible version of Java, Ghidra will revert to automatically locating a compatible version.

Answer 2

This may be because you're using the release from github, and these releases are not built and only contain the source code. Source: https://github.com/NationalSecurityAgency/ghidra/issues/2872

To fix the issue, you can try download ghidra from here https://www.ghidra-sre.org/

Answer 3

Usen este comando en power shell

winget install Microsoft.OpenJDK.17