shinyapps setAccountInfo错误

当我尝试shinyapps根据https://github.com/rstudio/shinyapps/blob/master/guide/guide.md上的指南配置我在my.shinyapps.io上注册的帐户信息时,

用我的真实账户名,令牌和秘密来呼叫这样的事: shinyapps :: setAccountInfo(name ="",token ="",secret ="")

错误: 错误:/ v1/users/current 403 - 签名错误

SessionInfo R版本3.0.2(2013-09-25)平台:x86_64-pc-linux-gnu(64位)

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=zh_CN.UTF-8       
 [4] LC_COLLATE=en_US.UTF-8     LC_MONETARY=zh_CN.UTF-8    LC_MESSAGES=en_US.UTF-8   
 [7] LC_PAPER=zh_CN.UTF-8       LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=zh_CN.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

其他附件包:[1] shinyapps_0.2 devtools_1.4.1

loaded via a namespace (and not attached):
 [1] digest_0.6.3   evaluate_0.5.1 httr_0.2       memoise_0.1    parallel_3.0.2 RCurl_1.95-4.1
 [7] RJSONIO_1.0-3  stringr_0.6.2  tools_3.0.2    whisker_0.3-2 

有人可以帮忙吗？