Failed to fetch URL

eclipse更新SDK報錯：Failed to fetch URL http://dl-ssl.google.com/android/repository/repository-1
android Failed to fetch URL
06-09
ADT在SDK Manager中出現問題Failed to fetch URL https://dl-ssl.google.com/android/repository/addons_list
android Failed to fetch URL SDK Manager
05-29
Ubuntu下SDK Manger報錯Failed to fetch URL解決辦法
android Failed to fetch URL hosts SDK Manager ubuntu
02-25