throw error to warn no metadata

src/util/tools.ts

@@ -31,7 +31,8 @@ export function getPropertiesOfClassValidator(targetConstructor: Function): Reco
       return [property, CM.flat()];
     }));
   }catch(e){
-    throw new Error(e.message+'. This typically happens when you build your TS code with a compiler like EsBuild that does not respect the "emitDecorators:true" configuration. Please recompile your amala project with tsc or a derivative/combination that involves tsc.')
+    e.message += '. This typically happens when you build your TS code with a compiler like EsBuild that does not respect the "emitDecorators:true" configuration. Please recompile your amala project with tsc or a derivative/combination that involves tsc'
+    throw e
   }
 }