Q:

Error while loading library "libicuuc.so.63" on termux

Since I have made an update of packages on Termux via:
pkg upgrade

R can't start, I receive this error message:
$R
CANNOT LINK EXECUTABLE 
 "/data/data/com.termux/files/usr/lib/R/bin/exec/R": 
library "libicuuc.so.63" not found
Aborted

I tried to reinstall the package 'libicu' through:
$pkg install libicu

but it has not worked:
Reading state information... Done
libicu is already the newest version (64.1). 
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 

Does anyone have any tips or ideas? 

A:

I have never used linux, It is uncertain.  Have you tried this code? 
$pkg update -f

Regarding reinstalling problem, Did you clear it before install the package? 
IF you don't, try this code.  
$pkg delete #add package name

