Just a few days ago I started working with R and in Rstudio it gives me the following message:
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:
package ‘dplyr’ successfully unpacked and MD5 sums checked Error in install.packages : ERROR: failed to lock directory ‘C:\Users\ANDREAS\AppData\Local\R\win-library\4.2’ for modifying Try removing ‘C:\Users\ANDREAS\AppData\Local\R\win-library\4.2/00LOCK’
I saw that someone else had the same problem as me and managed to solve it but it is impossible for me to solve the problem.
I don't know which folder to look in to delete that particular file.
R at first tries to install a package to 00LOCK directory. If the process is successful, then it is moved to a regular directory. When errors occur, 00LOCK have to be deleted. But sometimes it does not happen which results in the inability to install new packages. So you have to delete that directory manually:
For this purpose, I have the package pacman installed and its function pacman::p_unlock() that automatically deletes 00LOCK directories. But manual deletion (if you cannot install any packages) also works.
The other issue here can be that you have 2 RStudio sessions open. Try restarting your computer and then try to install dplyr. Make sure that you are not using the RStudio project. Does this work?