我一直在尝试在本地计算机上配置TFS 2018。它的安装，我能够在我的浏览器中打开tfs url。
在配置应用程序层时，未成功创建默认集合。
它在日志中引发警告：
# Load example data
data("EmplUK", package = "plm")
Em <- pdata.frame(EmplUK, index=c('firm', 'year'))
# how I think it should have worked
Em$lwage_incorrect = lag(Em$wage)
# what actually works
Em= Em %>% group_by(firm) %>% mutate(lwage_correct = lag(wage))
收藏集显示（正在创建...）并且处于离线状态。即使我试图创建新集合也是如此。 While creating new collection it gets stuck as shown in this image && Collections offline as shown in this image 如果有人解决并解决了此问题，请提供帮助。
