最近我用APP UPGRADE功能时发现报错，内容为：
`[1;32mGetting server and mirror lists...[0m
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
E: Type '<!DOCTYPE' is not known on line 1 in source list /opt/durapps/spark-store/bin/apt-fast-conf/sources.list.d/sparkstore.list
E: The list of sources could not be read.
[1;32mGetting server and mirror lists...[0m
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
E: Type '<!DOCTYPE' is not known on line 1 in source list /opt/durapps/spark-store/bin/apt-fast-conf/sources.list.d/sparkstore.list
E: The list of sources could not be read.`
不知道是什么原因？
