I am a beginner in RStudio. I try to install a package and there was an error.
package ‘rprojroot’ successfully unpacked and MD5 sums checked
Error in install.packages : ERROR: failed to lock directory ‘C:\Users\mami\Documents\R\win-library\3.6’ for modifying
Try removing ‘C:\Users\mami\Documents\R\win-library\3.6/00LOCK’
What should I do to solve this error?