diff --git a/packages-user/client-base/src/material/manager.ts b/packages-user/client-base/src/material/manager.ts
index b2b97c6..6648d09 100644
--- a/packages-user/client-base/src/material/manager.ts
+++ b/packages-user/client-base/src/material/manager.ts
@@ -57,6 +57,8 @@ export class MaterialManager implements IMaterialManager {
     private nowTilesetIndex: number = -1;
     /** 当前 tileset 偏移 */
     private nowTilesetOffset: number = 0;
+    /** 是否已经构建过素材 */
+    private built: boolean = false;
 
     constructor() {
         this.assetBuilder.pipe(this.assetStore);
@@ -303,7 +305,11 @@ export class MaterialManager implements IMaterialManager {
     }
 
     buildAssets(): Iterable<IMaterialAssetData> {
-        this.assetBuilder.pipe(this.assetStore);
+        if (this.built) {
+            logger.warn(79);
+            return [];
+        }
+        this.built = true;
         const data = this.assetBuilder.addTextureList(this.tileStore.values());
         const arr = [...data];
         const res: IMaterialAssetData[] = [];
diff --git a/packages/common/src/logger.json b/packages/common/src/logger.json
index b3f6ea2..4a37224 100644
--- a/packages/common/src/logger.json
+++ b/packages/common/src/logger.json
@@ -107,9 +107,10 @@
         "73": "Consistent size is needed when using WebGL2 composer.",
         "74": "Frame size not match texture's size, incomplete data will be skipped.",
         "75": "Material count splitted by grid does not match alias count, some material may have no alias or some alias may not map to a texture. Splitted: $1, alias: $2.",
-        "76": "Cannot pipe texture store when asset builder is started.",
+        "76": "Cannot pipe texture store when asset builder has been started.",
         "77": "Texture is clipped to an area of 0. Ensure that the texture contains your clip rect and clip rect's area is not zero.",
         "78": "Adding tileset source must follow index order.",
+        "79": "Assets can only be built once.",
         "1001": "Item-detail extension needs 'floor-binder' and 'floor-damage' extension as dependency.",
         "1101": "Cannot add new effect to point effect instance, for there's no more reserve space for it. Please increase the max count of the instance."
     }