E: Unable to locate package mosqquitto-clients的解決辦法：親測

樹莓派安裝出現這個問題pi@raspberrypi:~ $ sudo apt-get install mosquitto mosqquitto-clients
Reading package lists… Done
Building dependency tree
Reading state information… Done
E: Unable to locate package mosqquitto-clients
當更新沒有用的時候：解決辦法：
pi@raspberrypi:~ $ sudo apt-get install mosquitto