it shows this when i open

[yuntianxie7-prog]

ERROR: JAVA_HOME is set to an invalid directory: C:\Program Files\Java\jdk-18.0.2.1\bin

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.
Failed to launch enchcracker!

---

You should probably be using the mod version instead!
Download the Fabric mod from https://github.com/Earthcomputer/clientcommands/releases
Follow the instructions on the mod page to install it.
Follow the instructions on the wiki page for enchantment cracking: https://github.com/Earthcomputer/clientcommands/wiki/cenchant
If you need additional support, you can join the Discord at https://discord.gg/Jg7Bun7

---

[Chaose3]

This just means that the java version you have running. in this case 18.0.2.1 is not the correct version. The error message says to set the JAVA_HOME variable to match so find where the JAVA_HOME variable is and change your java version to match.