GATK build

when I type “./gradlew bundle” to build GATK, the error was shown in the screen

• What went wrong:
  A problem occurred evaluating root project ‘gatk’.

  Execution of “git lfs pull –include src/main/resources/large” failed with exit code: 1. git-lfs is required to build GATK but may not be installed. See github.com/broadinstitute/gatk#building for information on how to build GATK.