spain I tried installing those packages manually, but it didn't work either.
Just fyi: Installed dependencies in question on my Debian 13.3.
As I'm building Grommunio from git-source, I've never installed any Grommunio-setup packages.
cat /etc/debian_version
13.3
apt list --installed libfmt*
libfmt-dev/stable,stable,now 10.1.1+ds1-4 amd64 [installed]
libfmt10/stable,stable,now 10.1.1+ds1-4 amd64 [installed]
apt list --installed libjsoncpp*
libjsoncpp-dev/stable,stable,now 1.9.6-3 amd64 [installed]
libjsoncpp24/now 1.9.4-4 amd64 [installed,local]
libjsoncpp25/now 1.9.5-4 amd64 [installed,local]
libjsoncpp26/stable,stable,now 1.9.6-3 amd64 [installed,automatic]
libfmt7/now 7.1.3+ds1-5 amd64 [installed,local]
libfmt9/now 9.1.0+ds1-2 amd64 [installed,local]
apt list --installed libldap*
libldap-common/stable,stable,now 2.6.10+dfsg-1 all [installed,automatic]
libldap-dev/stable,stable,now 2.6.10+dfsg-1 amd64 [installed,automatic]
libldap2-dev/stable,stable,now 2.6.10+dfsg-1 all [installed]
libldap2/stable,stable,now 2.6.10+dfsg-1 amd64 [installed,automatic]
apt list --installed libtinyxml*
libtinyxml-dev/stable,stable,now 2.6.2-7 amd64 [installed]
libtinyxml2-11/stable,stable,now 11.0.0+dfsg-1+b1 amd64 [installed,automatic]
libtinyxml2-dev/stable,stable,now 11.0.0+dfsg-1+b1 amd64 [installed]
libtinyxml2.6.2v5/stable,stable,now 2.6.2-7 amd64 [installed,automatic]
