按官方文档无法编译

[Kusabier]

PS C:\Users\Kusabier\Desktop\FMT-Firmware\target\cuav\v5_plus> scons -j4
scons: Reading SConscript files ...
'fnm' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
OSError: 'fnm' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
:
File "C:\Users\Kusabier\Desktop\FMT-Firmware\target\cuav\v5_plus\SConstruct", line 58:
Export('RTT_ROOT')
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Script\SConscript.py", line 658:
env = self.factory()
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Script\SConscript.py", line 638:
default_env = SCons.Defaults.DefaultEnvironment()
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Defaults.py", line 83:
default_env = SCons.Environment.Environment(*args, **kw)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Environment.py", line 1030:
apply_tools(self, tools, toolpath)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Environment.py", line 116:
_ = env.Tool(tool)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Environment.py", line 1906:
tool(self)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool_init.py", line 265:
self.generate(env, *args, **kw)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool\default.py", line 41:
SCons.Tool.Tool(t)(env)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool_init_.py", line 265:
self.generate(env, *args, **kw)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool\mslink.py", line 312:
msvc_setup_env_once(env, tool=tool_name)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool\MSCommon\vc.py", line 1110:
msvc_setup_env(env)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool\MSCommon\vc.py", line 1259:
d = msvc_find_valid_batch_script(env,version)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool\MSCommon\vc.py", line 1162:
d = script_env(env, vc_script, args=arg)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool\MSCommon\vc.py", line 1030:
stdout = common.get_output(script, args)
File "C:\Users\Kusabier\miniconda3\Lib\site-packages\SCons\Tool\MSCommon\common.py", line 341:
raise IOError(stderr.decode(OEM))