Fix issue preventing build when a scene includes a common tileset tha…

…t has been deleted

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix issue preventing building projects containing a "Play Music" event but no music
 - Fix issue where dialogue script events could cause horizontal scroll bars to appear in script editor when column was not wide enough to display all tabs
 - Fix issue where errors causing the build process to end early where not being display correctly in the Build Log
+- Fix issue preventing build when a scene includes a common tileset that has been deleted
 
 ## [4.1.2] - 2024-09-09
 

src/lib/compiler/compileData.ts

@@ -967,11 +967,26 @@ export const precompileScenes = (
   }
 ) => {
   const scenesData: PrecompiledScene[] = scenes.map((scene, sceneIndex) => {
-    const background = usedBackgrounds.find(
+    const backgroundWithCommonTileset = usedBackgrounds.find(
       (background) =>
         background.id === scene.backgroundId &&
         (!scene.tilesetId || background.commonTilesetId === scene.tilesetId)
     );
+
+    if (!backgroundWithCommonTileset) {
+      warnings(
+        `Scene #${sceneIndex + 1} ${
+          scene.name ? `'${scene.name}'` : ""
+        } includes a common tileset that can't be located.`
+      );
+    }
+
+    const background =
+      backgroundWithCommonTileset ??
+      usedBackgrounds.find(
+        (background) => background.id === scene.backgroundId
+      );
+
     if (!background) {
       throw new Error(
         `Scene #${sceneIndex + 1} ${