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Error in installation a R package

Please help me, I cannot install "MASS" package.

> library(MASS)
Error in library(MASS) : there is no package called ‘MASS’

I tried to install MASS package from local:

> utils:::menuInstallLocal()  
package ‘MASS’ successfully unpacked and MD5 sums checked  
Warning: cannot remove prior installation of package ‘MASS’

Even I cannot remove "MASS":

> remove.packages("MASS")  
Removing package from ‘C:/Program Files/R/R-3.0.1/library’  
(as ‘lib’ is unspecified)  
Error in find.package(pkgs, lib) : there is no package called ‘MASS’

Also with this option I couldn't install package:

> options(install.lock=T)  
> utils:::menuInstallLocal()  
package ‘MASS’ successfully unpacked and MD5 sums checked  
Warning: cannot remove prior installation of package ‘MASS’  
Warning: restored ‘MASS’  
Warning message:  
In file.copy(savedcopy, lib, recursive = TRUE) :  
  problem copying C:\Program Files\R\R-3.0.1\library\00LOCK\MASS\libs\x64\MASS.dll to C:\Program Files\R\R-3.0.1\library\MASS\libs\x64\MASS.dll: Permission

And with install.packages:

> install.packages("C:\\MASS_7.3-35.zip",repos=NULL)
package ‘MASS’ successfully unpacked and MD5 sums checked  
Warning: cannot remove prior installation of package ‘MASS’  
Warning: restored ‘MASS’  
Warning message:  
In file.copy(savedcopy, lib, recursive = TRUE) :  
  problem copying C:\Program Files\R\R-3.0.1\library\00LOCK\MASS\libs\x64\MASS.dll to C:\Program Files\R\R-3.0.1\library\MASS\libs\x64\MASS.dll: Permission

I should mention I use R with ORE (Oracle R Enterprise).

Solution

  • There could be a few things happening here. Start by first figuring out your library location:

    Sys.getenv("R_LIBS_USER")

    or

    .libPaths()

    We already know yours from the info you gave: C:\Program Files\R\R-3.0.1\library

    I believe you have a file in there called: 00LOCK. From ?install.packages:

    Note that it is possible for the package installation to fail so badly that the lock directory is not removed: this inhibits any further installs to the library directory (or for --pkglock, of the package) until the lock directory is removed manually.

    You need to delete that file. If you had the pacman package installed you could have simply used p_unlock() and the 00LOCK file is removed. You can't install pacman now until the 00LOCK file is removed.

    To install pacman use:

    install.packages("pacman")

    There may be a second issue. This is where you somehow corrupted MASS. This can occur, in my experience, if you try to update a package while it is in use in another R session. I'm sure there's other ways to cause this as well. To solve this problem try:

    1. Close out of all R sessions (use task manager to ensure you're truly R session free) Ctrl + Alt + Delete
    2. Go to your library location Sys.getenv("R_LIBS_USER"). In your case this is: C:\Program Files\R\R-3.0.1\library
    3. Manually delete the MASS package
    4. Fire up a vanilla session of R
    5. Install MASS via install.packages("MASS")

    If any of this works please let me know what worked.