The bean 'dubboBootstrapApplicationListener' has already been defined and overriding is disabled.

[dwhgygzt]

Environment

• Dubbo version: 2.7.7
• Operating System version: window10
• Java version: jdk1.8_151

this is my pom.xml

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

<!--================  Spring Boot ===================== -->
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.6.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<groupId>com.middol</groupId>
<artifactId>dubbo-test1</artifactId>
<version>1.0-SNAPSHOT</version>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <java.version>1.8</java.version>
    <dubbo.version>2.7.7</dubbo.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo</artifactId>
        <version>${dubbo.version}</version>
    </dependency>
    <!-- Dubbo Nacos registry dependency -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo-registry-nacos</artifactId>
        <version>2.7.6</version>
    </dependency>

    <!-- Keep latest Nacos client version -->
    <dependency>
        <groupId>com.alibaba.nacos</groupId>
        <artifactId>nacos-client</artifactId>
        <version>1.2.1</version>
    </dependency>

    <!-- Alibaba Spring Context extension -->
    <dependency>
        <groupId>com.alibaba.spring</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>1.0.6</version>
    </dependency>
</dependencies>

Expected Result

spring boot application success running

Actual Result

---

APPLICATION FAILED TO START

---

Description:

The bean 'dubboBootstrapApplicationListener' could not be registered. A bean with that name has already been defined and overriding is disabled.

Action:

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

[lohcve]

same issue,back to version 2.7.4.1

[dwhgygzt]

I hope to solve this bug as soon as possible. I hope to use 2.7.7 for the new project