Centos eucalyptus无法加载AWS\u凭证\u文件

我删除了以前的凭据，然后在获取新凭据时再次显示：

无法加载AWS\u凭据\u文件

[root@server-104 ~]# rm ~/creds/*
rm: remove regular file `/root/creds/admin.zip'? yes
rm: remove regular file `/root/creds/cloud-cert.pem'? yes
rm: remove regular file `/root/creds/euca2-admin-7d0b1e85-cert.pem'? yes
rm: remove regular file `/root/creds/euca2-admin-7d0b1e85-pk.pem'? yes
rm: remove regular file `/root/creds/eucarc'? yes
rm: remove regular file `/root/creds/iamrc'? yes
rm: remove regular file `/root/creds/jssecacerts'? yes
rm: remove regular empty file `/root/creds/sshlogin'? yes
[root@server-104 ~]# cd ~/creds/
[root@server-104 creds]# euca-get-credentials admin.zip
/usr/lib/python2.6/site-packages/boto/pyami/config.py:75: UserWarning: Unable to load AWS_CREDENTIAL_FILE (/root/creds/iamrc)
  warnings.warn('Unable to load AWS_CREDENTIAL_FILE (%s)' % full_path)

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它仍然应该下载凭证

但为了便于将来参考，在下载新的管理员凭据之前，请尝试重新登录到会话或取消设置所有与Eucalyptus相关的环境变量并尝试下载凭据

您不应该再看到此警告