Makefile failed for obal

I build a docker machine as stated on Ardupilot website.

I try now to compile for obal board to be used with Pi 4.

I receive this error :

make obal                                                       
Setting top to                           : /ardupilot 
Setting out to                           : /ardupilot/build 
Autoconfiguration                        : enabled 
Checking for program 'python'            : /usr/bin/python 
Checking for python version >= 3.6.9     : 3.10.12 
Setting board to                         : obal 
Using toolchain                          : arm-linux-gnueabihf 
Checking for 'g++' (C++ compiler)        : /usr/lib/ccache/arm-linux-gnueabihf-g++ 
Checking for 'gcc' (C compiler)          : /usr/lib/ccache/arm-linux-gnueabihf-gcc 
Checking for c flags '-MMD'              : yes 
Checking for cxx flags '-MMD'            : yes 
CXX Compiler                             : g++ 11.4.0 
Checking for need to link with librt     : not necessary 
Checking for 'lttng-ust':                : disabled 
Checking for library dl                  : yes 
Checking for program 'arm-linux-gnueabihf-pkg-config' : /usr/bin/arm-linux-gnueabihf-pkg-config 
Checking for 'libiio'                                 : not found 
Enabled OpenDroneID                                   : no 
Enabled firmware ID checking                          : no 
GPS Debug Logging                                     : no 
Enabled custom controller                             : no 
Checking for HAVE_CMATH_ISFINITE                      : yes 
Checking for HAVE_CMATH_ISINF                         : yes 
Checking for HAVE_CMATH_ISNAN                         : yes 
Checking for NEED_CMATH_ISFINITE_STD_NAMESPACE        : yes 
Checking for NEED_CMATH_ISINF_STD_NAMESPACE           : yes 
Checking for NEED_CMATH_ISNAN_STD_NAMESPACE           : yes 
Checking for header endian.h                          : yes 
Checking for header byteswap.h                        : yes 
Checking for HAVE_MEMRCHR                             : yes 
Traceback (most recent call last):
  File "/ardupilot/modules/waf/waflib/", line 158, in waf_entry_point
  File "/ardupilot/modules/waf/waflib/", line 251, in run_commands
    ctx = run_command(cmd_name)
  File "/ardupilot/modules/waf/waflib/", line 235, in run_command
  File "/ardupilot/modules/waf/waflib/", line 159, in execute
    super(ConfigurationContext, self).execute()
  File "/ardupilot/modules/waf/waflib/", line 204, in execute
  File "/ardupilot/modules/waf/waflib/", line 286, in recurse
  File "/ardupilot/wscript", line 496, in configure
  File "/ardupilot/Tools/ardupilotwaf/", line 175, in configure
    c_cpp_properties = json.load(open(os.path.join(env.SRCROOT, '.vscode/c_cpp_properties.json')))
  File "/usr/lib/python3.10/json/", line 293, in load
    return loads(,
  File "/usr/lib/python3.10/json/", line 346, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.10/json/", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.10/json/", line 353, in raw_decode
    obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes: line 8 column 13 (char 159)