Error "unknown type name 'BX_CPU_C'" for building fail with gem5

[ruizhang2015]

Dear author, when building fail with gem5 I met the following error:

$ make -j 
Removing gem5 binary and CMake build stamp ...
[  8%] Built target FailGem5_generation
[ 18%] Built target fail-protoc
[ 22%] Built target fail-comm
[ 22%] Built target gem5-force-re-linking
[ 24%] Built target fail-tracing
[ 38%] Built target fail-sal
[ 54%] Built target fail-util
[ 59%] Built target fail-weather-monitor
[ 60%] Building CXX object src/core/efw/CMakeFiles/fail-efw.dir/DatabaseExperiment.cc.o
/home/fxm/fail/src/core/efw/DatabaseExperiment.cc:41:2: error: unknown type name 'BX_CPU_C'
        BX_CPU_C *cpu_context = simulator.getCPUContext();
        ^
/home/fxm/fail/src/core/efw/DatabaseExperiment.cc:41:36: error: no member named 'getCPUContext' in 'fail::Gem5Controller'; did you mean 'getCPUCount'?
        BX_CPU_C *cpu_context = simulator.getCPUContext();
                                          ^~~~~~~~~~~~~
                                          getCPUCount
/home/fxm/fail/src/core/sal/gem5/../SimulatorController.hpp:172:9: note: 'getCPUCount' declared here
        size_t getCPUCount() const { return m_CPUs.size(); }
               ^
/home/fxm/fail/src/core/efw/DatabaseExperiment.cc:46:2: error: unknown type name 'bxInstruction_c'
        bxInstruction_c *currInstr = simulator.getCurrentInstruction();
        ^
/home/fxm/fail/src/core/efw/DatabaseExperiment.cc:46:41: error: no member named 'getCurrentInstruction' in 'fail::Gem5Controller'
        bxInstruction_c *currInstr = simulator.getCurrentInstruction();
                                     ~~~~~~~~~ ^
/home/fxm/fail/src/core/efw/DatabaseExperiment.cc:51:2: error: unknown type name 'Bit8u'
        Bit8u instr_plain[15];
        ^
/home/fxm/fail/src/core/efw/DatabaseExperiment.cc:88:74: error: use of undeclared identifier 'RID_PC'
                simulator.getCPU(0).setRegisterContent(simulator.getCPU(0).getRegister(RID_PC), new_PC);
                                                                                       ^
error: Execution failed: "/usr/bin/ac++" --system-config "/tmp/agxx_pcfgjrLJTD"  -D "_FILE_OFFSET_BITS=64"  -I "/home/fxm/fail/simulators/gem5/src"  -I "/home/fxm/fail/simulators/gem5/build/ARM"  -I "/home/fxm/fail/build/src/core"  -I "/home/fxm/fail/build/src/core/comm"  -I "/home/fxm/fail/src/core"  -p "/home/fxm/fail/src"  -p "/home/fxm/fail/simulators"  -p "/home/fxm/fail/debuggers"  -p "/home/fxm/fail/tools"  -p "/home/fxm/fail/build/src"  -D "__NO_MATH_INLINES"  -D "NDEBUG"  -I "/usr/include/mysql"  -I "/usr/include/SDL"  -c "/home/fxm/fail/src/core/efw/DatabaseExperiment.cc" -o "/tmp/DatabaseExperiment.cc_agxx_cJpPbH"
src/core/efw/CMakeFiles/fail-efw.dir/build.make:110: recipe for target 'src/core/efw/CMakeFiles/fail-efw.dir/DatabaseExperiment.cc.o' failed
make[2]: *** [src/core/efw/CMakeFiles/fail-efw.dir/DatabaseExperiment.cc.o] Error 1
CMakeFiles/Makefile2:637: recipe for target 'src/core/efw/CMakeFiles/fail-efw.dir/all' failed
make[1]: *** [src/core/efw/CMakeFiles/fail-efw.dir/all] Error 2
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2

Also attached the CMakeCache.txt file.
Can you please help me with the issue? Thanks a lot in advance!