diff --git a/packages/planet/src/component/planet-component-loader.spec.ts b/packages/planet/src/component/planet-component-loader.spec.ts
index ceb24d0..9211022 100644
--- a/packages/planet/src/component/planet-component-loader.spec.ts
+++ b/packages/planet/src/component/planet-component-loader.spec.ts
@@ -64,7 +64,7 @@ describe('PlanetComponentLoader', () => {
 
         expect(() => {
             loadApp1Component(app2ModuleRef);
-        }).toThrowError(`${app1Name} not registered components`);
+        }).toThrowError(`${app1Name}'s component(app1-projects) is not registered`);
 
         registerAppComponents(app1ModuleRef);
         tick();
diff --git a/packages/planet/src/component/planet-component-loader.ts b/packages/planet/src/component/planet-component-loader.ts
index 5eb8a8a..0615ed6 100644
--- a/packages/planet/src/component/planet-component-loader.ts
+++ b/packages/planet/src/component/planet-component-loader.ts
@@ -157,7 +157,7 @@ export class PlanetComponentLoader {
                 if (componentFactory) {
                     return componentFactory<TData, TComp>(componentName, config);
                 } else {
-                    throw new Error(`${app} not registered components`);
+                    throw new Error(`${app}'s component(${componentName}) is not registered`);
                 }
             }),
             finalize(() => {