Skipping acquire of configured file ···doesn't support architecture 'i386' acquire of configured file

系统更新的时候报错：

    Skipping acquire of configured file 'main/binary-i386/Packages' as repository
 'http://repo.mongodb.org/apt/debian stretch/mongodb-org/4.0 InRelease' doesn't support architecture 'i386'
  acquire of configured file 'main/binary-i386/Packages' as repository 'http://repo.mongodb.org/apt/debian
  stretch/mongodb-org/4.0 InRelease' doesn't support architecture 'i386'

　　解决方法 ：

vim /etc/apt/sources.list.d/mongodb-org-4.0.list 
   在deb后面加入   [arch=amd64]

如果是其他软件更新