From 3ab9a4f3024989da5735042536d90c635097d2a1 Mon Sep 17 00:00:00 2001
From: Kipton Barros <kbarros@gmail.com>
Date: Tue, 12 Nov 2024 12:17:46 -0700
Subject: [PATCH] Fix error message when g is symmetry disallowed

---
 Project.toml         | 2 +-
 docs/src/versions.md | 5 +++++
 src/System/Moment.jl | 2 +-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Project.toml b/Project.toml
index 4762720f8..8efb7742b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "Sunny"
 uuid = "2b4a2ac8-8f8b-43e8-abf4-3cb0c45e8736"
 authors = ["The Sunny team"]
-version = "0.7.3"
+version = "0.7.4"
 
 [deps]
 CrystalInfoFramework = "6007d9b0-c6b2-11e8-0510-1d10e825f3f1"
diff --git a/docs/src/versions.md b/docs/src/versions.md
index 8f891da1b..d484b8587 100644
--- a/docs/src/versions.md
+++ b/docs/src/versions.md
@@ -1,5 +1,10 @@
 # Version History
 
+## v0.7.4
+(In development)
+
+* Better error message when a $g$-tensor is symmetry disallowed.
+
 ## v0.7.3
 (Nov 12, 2024)
 
diff --git a/src/System/Moment.jl b/src/System/Moment.jl
index bd8ec7711..e92675fb8 100644
--- a/src/System/Moment.jl
+++ b/src/System/Moment.jl
@@ -31,7 +31,7 @@ function propagate_moments(cryst::Crystal, moments::Vector{Pair{Int, Moment}})
     for (i, m) in moments
         1 <= i <= natoms(cryst) || error("Atom $i outside the valid range 1:$(natoms(cryst))")
         if !is_coupling_valid(cryst, Bond(i, i, [0,0,0]), m.g)
-            error("g-tensor $(m.g) is inconsistent with the site symmetry of atom $(m.atom).")
+            error("g-tensor on site $i is symmetry inconsistent; see `print_site(cryst, $i)` for more information.")
         end
     end