Refactor the build-task

gulpfile.ts

@@ -194,31 +194,41 @@ function BrowserSync(filePath?: string): TaskFunction
  */
 export async function Build(): Promise<void>
 {
-    if (settings.Watch)
-    {
-        log.info(watchStartMessage);
+    return new Promise(
+        (resolve, reject) =>
+        {
+            if (settings.Watch)
+            {
+                log.info(watchStartMessage);
 
-        syncer.init({
-            open: false,
-            proxy: "http://localhost",
-            port: 3000,
-            ui: {
-                port: 3001
-            },
-            ghostMode: false,
-            online: false
+                syncer.init({
+                    open: false,
+                    proxy: "http://localhost",
+                    port: 3000,
+                    ui: {
+                        port: 3001
+                    },
+                    ghostMode: false,
+                    online: false
+                });
+
+                gulp.watch(settings.ThemeSource("**"), { usePolling: true }, gulp.series(Theme, BrowserSync("*.css")));
+                gulp.watch(settings.TemplateSource("**"), { usePolling: true }, gulp.series(Templates, BrowserSync()));
+            }
+
+            gulp.parallel(Library, Theme, Templates)(
+                (error) =>
+                {
+                    if (error)
+                    {
+                        reject(error);
+                    }
+                    else
+                    {
+                        resolve();
+                    }
+                });
         });
-
-        gulp.watch(settings.ThemeSource("**"), { usePolling: true }, gulp.series(Theme, BrowserSync("*.css")));
-        gulp.watch(settings.TemplateSource("**"), { usePolling: true }, gulp.series(Templates, BrowserSync()));
-    }
-
-    await Promise.all(
-        [
-            Library(),
-            Theme(),
-            Templates()
-        ]);
 }
 
 /**