Package installation not working in R - r

Question

Nevermind, fixed it. Will write up comment explaining fix tn.
I am trying to install the geometric morphometrics package in R, but whenever I try to install it, I get the following error message:
> install.packages("geomorph")
There is a binary version available but the source version is later: binary source needs_compilation geomorph 3.0.5 3.0.6 FALSE
installing the source package ‘geomorph’
trying URL 'https://cran.rstudio.com/src/contrib/geomorph_3.0.6.tar.gz'
Content type 'application/x-gzip' length 545863 bytes (533 KB)
==================================================
downloaded 533 KB
Warning in strptime(xx, f <- "%Y-%m-%d %H:%M:%OS", tz = tz) :
unknown timezone 'default/America/Toronto'
* installing *source* package ‘geomorph’ ...
** package ‘geomorph’ successfully unpacked and MD5 sums checked
** R
** data
** inst
** preparing package for lazy loading
Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) :
there is no package called ‘mvtnorm’
ERROR: lazy loading failed for package ‘geomorph’
* removing ‘/Library/Frameworks/R.framework/Versions/3.3/Resources/library/geomorph’
Warning in install.packages :
installation of package ‘geomorph’ had non-zero exit status
The downloaded source packages are in
‘/private/var/folders/4p/m9yg9rg94v13j49zxnp9kzzh0000gn/T/RtmpCBCHAn/downloaded_packages’
I'm using RStudio but I tried it in just R, I've updated to the latest MacOS HighSierra, I have tried restarting the applications, I've installed and restarted XQuartz, and so far nothing has worked.
I'm running R on an early 2015 MacBook Air, I'm fresh out of ideas. Any suggestions are welcome.
EDIT:
Trying to install mvtnorm also failed, producing the following:
> install.packages("mvtnorm")
There is a binary version available but the source version is later:
binary source needs_compilation
mvtnorm 1.0-6 1.0-7 TRUE
Do you want to install from sources the package which needs compilation?
y/n: y
installing the source package ‘mvtnorm’
trying URL 'https://cran.rstudio.com/src/contrib/mvtnorm_1.0-7.tar.gz'
Content type 'application/x-gzip' length 159381 bytes (155 KB)
==================================================
downloaded 155 KB
* installing *source* package ‘mvtnorm’ ...
** package ‘mvtnorm’ successfully unpacked and MD5 sums checked
** libs
clang -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG - I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -fPIC - Wall -mtune=core2 -g -O2 -c C_FORTRAN_interface.c -o C_FORTRAN_interface.o
clang -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG - I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -fPIC - Wall -mtune=core2 -g -O2 -c miwa.c -o miwa.o
gfortran-4.8 -fPIC -g -O2 -c mvt.f -o mvt.o
make: gfortran-4.8: No such file or directory
make: *** [mvt.o] Error 1
ERROR: compilation failed for package ‘mvtnorm’
* removing ‘/Library/Frameworks/R.framework/Versions/3.3/Resources/library/mvtnorm’
* restoring previous ‘/Library/Frameworks/R.framework/Versions/3.3/Resources/library/mvtnorm’
Warning in install.packages :
installation of package ‘mvtnorm’ had non-zero exit status
The downloaded source packages are in
‘/private/var/folders/4p/m9yg9rg94v13j49zxnp9kzzh0000gn/T/RtmpCBCHAn/downloaded_packages’