As already pointed out in this post, it seems that the current version of GEOS available on shinyapps.io is not at the right level.
This is the error message I am getting when trying to deploy my app:
** package ‘lwgeom’ successfully unpacked and MD5 sums checked
** using staged installation
configure: CC: gcc
configure: CXX: g++ -std=gnu++11
configure: pkg-config proj exists, will use it
configure: PROJ: 4.9.2
checking for pj_init_plus in -lproj... yes
checking PROJ: epsg found and readable... yes
configure: POSTGIS_PROJ_VERSION: 49
checking for geos-config... /usr/bin/geos-config
checking geos-config usability... yes
configure: GEOS: 3.5.1
checking GEOS version >= 3.6.0... no
configure: error: upgrade GEOS to 3.6.0 or later
ERROR: configuration failed for package ‘lwgeom’
- removing ‘/opt/R/4.0.0/lib/R/library/lwgeom’
Is there anything I could do to by-pass this problem waiting for an update on the shiny apps side?
Thank you in advance.