diff --git a/apps/nxmesh-master/src/service/error.rs b/apps/nxmesh-master/src/service/error.rs
new file mode 100644
index 0000000..46bc4ab
--- /dev/null
+++ b/apps/nxmesh-master/src/service/error.rs
@@ -0,0 +1,13 @@
+#[derive(Debug, Clone, PartialEq, Eq, thiserror::Error)]
+pub enum RepoError {
+    #[error("internal error: {0}")]
+    InternalError(String),
+}
+
+impl From<sea_orm::DbErr> for RepoError {
+    fn from(err: sea_orm::DbErr) -> Self {
+        match err {
+            other => RepoError::InternalError(other.to_string()),
+        }
+    }
+}