Error: package or namespace load failed for ‘shinyCox’ in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
 there is no package called ‘rlang’
Call sequence:
6: stop(msg, call. = FALSE, domain = NA)
5: value[[3L]](cond)
4: tryCatchOne(expr, names, parentenv, handlers[[1L]])
3: tryCatchList(expr, classes, parentenv, handlers)
2: tryCatch({
       ns <- loadNamespace(package, lib.loc)
       env <- attachNamespace(ns, pos = pos, deps, exclude, include.only)
   }, error = function(e) {
       P <- if (!is.null(cc <- conditionCall(e))) 
           paste(" in", deparse(cc)[1L])
       else ""
       msg <- gettextf("package or namespace load failed for %s%s:\n %s", 
           sQuote(package), P, conditionMessage(e))
       if (logical.return && !quietly) 
           message(paste("Error:", msg), domain = NA)
       else stop(msg, call. = FALSE, domain = NA)
   })
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose = FALSE)
Execution halted
Error: package or namespace load failed for ‘shinyCox’ in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
 there is no package called ‘rlang’
Call sequence:
6: stop(msg, call. = FALSE, domain = NA)
5: value[[3L]](cond)
4: tryCatchOne(expr, names, parentenv, handlers[[1L]])
3: tryCatchList(expr, classes, parentenv, handlers)
2: tryCatch({
       ns <- loadNamespace(package, lib.loc)
       env <- attachNamespace(ns, pos = pos, deps, exclude, include.only)
   }, error = function(e) {
       P <- if (!is.null(cc <- conditionCall(e))) 
           paste(" in", deparse(cc)[1L])
       else ""
       msg <- gettextf("package or namespace load failed for %s%s:\n %s", 
           sQuote(package), P, conditionMessage(e))
       if (logical.return && !quietly) 
           message(paste("Error:", msg), domain = NA)
       else stop(msg, call. = FALSE, domain = NA)
   })
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose = FALSE)
Execution halted
Error: package or namespace load failed for ‘shinyCox’ in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
 there is no package called ‘rlang’
Call sequence:
6: stop(msg, call. = FALSE, domain = NA)
5: value[[3L]](cond)
4: tryCatchOne(expr, names, parentenv, handlers[[1L]])
3: tryCatchList(expr, classes, parentenv, handlers)
2: tryCatch({
       ns <- loadNamespace(package, lib.loc)
       env <- attachNamespace(ns, pos = pos, deps, exclude, include.only)
   }, error = function(e) {
       P <- if (!is.null(cc <- conditionCall(e))) 
           paste(" in", deparse(cc)[1L])
       else ""
       msg <- gettextf("package or namespace load failed for %s%s:\n %s", 
           sQuote(package), P, conditionMessage(e))
       if (logical.return && !quietly) 
           message(paste("Error:", msg), domain = NA)
       else stop(msg, call. = FALSE, domain = NA)
   })
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose = FALSE)
Execution halted