error_packages: List of packages that failed to load in last scan
In dracodoc/namebrowser: Search Object Name in All Installed Packages

Description Usage Format Details

While using ls("package:pkgname") to scan object names inside package need to load and attach package first. Some packages cannot be loaded thus cannot be scanned.

1	error_packages

A character vector of package names

Some packages are simply not installed properly thus cannot be loaded.

In a big scan session some packages cannot be loadeded because of error 'maximal number of DLLs reached...'. The DLL limit is 100 according to http://stackoverflow.com/questions/24832030/exceeded-maximum-number-of-dlls-in-r

The DLL limit was reached because too many packages were loaded in scan but didn't get unloaded, although extra efforts was made to unload properly, some still cannot be unloaded for dependency reason.

Running update_name_table(tryError = TRUE) in new R session can scan packages that previously have problems. Each new scan in new R session should cover some packages that failed in last time because of DLL limit error. After several attempts all the left packages are packages have installation problems. There is no need to scan again.

For example, there are 400 packages listed in package author's machine, 130 have errors in one scan from scratch, after 3 runs of scan error packages, 47 packages still left, all have installation problems.

dracodoc/namebrowser documentation built on May 15, 2019, 1:52 p.m.