Permission denied

[yinhaojun]

qinqin@qinqin:~$ dryrun git@github.com:cesarferreira/dryrun.git
Searching for devices...
Picked 1ae2d6d67d13
正克隆到 '/tmp/dryrun/cesarferreira/dryrun'...
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

======================================================

Something went wrong while executing this:
$ git clone --depth 1 git@github.com:cesarferreira/dryrun.git /tmp/dryrun/cesarferreira/dryrun

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[yinhaojun]

sorry. i add ssh key to github. forgive my stupid question