yocto bitcake 使用记录

user@ubuntu:~/Desktop/yocto/build$ bitbake core-image-minimal
ERROR:  OE-core's config sanity checker detected a potential misconfiguration.
    Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
    Following is the list of potential problems / advisories:

    MACHINE=XXX is invalid. Please set a valid MACHINE in your local.conf, environment or other configuration file.

如何分析处理？
有可能是bblayers.conf没有设置好
请参考：参考

build目录下的conf目录中有两个重要的文件：bblayers.conf和local.conf两个配置文件
/conf/bblayer.conf:该配置文件定义了构建嵌入式Linux系统发行版所需要使用