The error message indicates that there is an issue with the KernelSU build process. Specifically, it states that KSU_GIT_VERSION is not defined, which is a problem because it is recommended to make KernelSU a git repository. This undefined variable might be causing the build process to fail or produce unexpected results. Additionally, the message provides details about the KernelSU Manager signature size and hash, which could be useful for debugging purposes if the build process is not functioning as expected. To resolve this issue, you should ensure that KSU_GIT_VERSION is properly defined in the build configuration. This might involve checking the Kbuild file and making sure that the git version is correctly set before proceeding with the build.