why i can not download the scim or fcitx?

[chouychou]

i use the http://ftp.sjtu.edu.cn/ubuntu/ sources
but when i run the commandes
$sudo apt-get install scim scim-modules-socket scim-modules-table scim-pinyin scim-tables-zh scim-input-pad
or
$sudo apt-get install fcitx

it can not find. but i can download the other softwares.

who can help me ? Thank you

[yongyi]

做过 apt-get update 没有?

[chouychou]

of cource i have

i also have used the synaptic to update
but neither can i found them

[614a]

试试ftp://