diff --git a/compiler/error/source/406_NOT_ACCEPTABLE.tsv b/compiler/error/source/406_NOT_ACCEPTABLE.tsv
new file mode 100644
index 00000000..d82f6e11
--- /dev/null
+++ b/compiler/error/source/406_NOT_ACCEPTABLE.tsv
@@ -0,0 +1 @@
+id	message