From 78c694d42f24c5b1fec378d72152691f27e90c59 Mon Sep 17 00:00:00 2001
From: Philipp Meier <philipp.meier@gmx.at>
Date: Wed, 1 Mar 2023 21:30:19 +0100
Subject: [PATCH] feat: Improved error messages.

---
 src/Program.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Program.cs b/src/Program.cs
index 1a5cacc..4cd0c3f 100644
--- a/src/Program.cs
+++ b/src/Program.cs
@@ -1,11 +1,12 @@
 using System.Data;
 using Microsoft.Data.Sqlite;
 
+const string mbtilesFileName = "map_data.mbtiles";
 var mbtilesPath = Environment.GetEnvironmentVariable("ASPNETCORE_MBTILES_PATH") ??
-    Path.Combine("data", "map_data.mbtiles");
+    Path.Combine("data", mbtilesFileName);
 
 if (!File.Exists(mbtilesPath))
-    throw new FileNotFoundException(mbtilesPath);
+    throw new FileNotFoundException($"Required .mbtiles-file \"{mbtilesPath}\" not found.");
 
 var builder = WebApplication.CreateBuilder(args);