Build failed for ghidra 9.1

[FabioNevesRezende]

Gradle version: 6.0.1 Ghidra version: 9.1 (2019-OCT-23 1737 EDT)

output:

$ gradle -PGHIDRA_INSTALL_DIR=/usr/share/ghidra

Task :compileJava FAILED /home/fabio/src/gdb% gradle -PGHIDRA_INSTALL_DIR=/usr/share/ghidra

Task :compileJava FAILED /home/fabio/src/gdbghidra/src/main/java/gdbghidra/GDBReceiver.java:46: error: cannot access Address import ghidra.program.model.address.Address; ^ bad class file: /usr/share/ghidra/Ghidra/Framework/SoftwareModeling/lib/SoftwareModeling.jar(ghidra/program/model/address/Address.class) class file has wrong version 55.0, should be 52.0 Please remove or make sure it appears in the correct subdirectory of the classpath.

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':compileJava'. ghidra/src/main/java/gdbghidra/GDBReceiver.java:46: error: cannot access Address import ghidra.program.model.address.Address; ^ bad class file: /usr/share/ghidra/Ghidra/Framework/SoftwareModeling/lib/SoftwareModeling.jar(ghidra/program/model/address/Address.class) class file has wrong version 55.0, should be 52.0 Please remove or make sure it appears in the correct subdirectory of the classpath.

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':compileJava'.