Dubbo+Nacos服务启动报错,返回unknown user的问题

nacos.core.auth.enabled=true

<properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.6.RELEASE</spring-boot.version>
        <dubbo.version>3.0.2.1</dubbo.version>
        <nacos.version>2.0.3</nacos.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <!-- spring boot 2.3.2.RELEASE -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
	<dependencies>
        <!-- spring boot 集成 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- dubbo spring boot 集成 -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>${dubbo.version}</version>
        </dependency>
        <!-- dubbo nacos 集成 -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
            <version>${dubbo.version}</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>${nacos.version}</version>
        </dependency>
    </dependencies>

spring:
  application:
    name: dubbo-demo-provider
  jackson:
    time-zone: GMT+8
    date-format: yyyy-MM-dd HH:mm:ss
dubbo:
  application:
    name: dubbo-demo-provider
    # 禁用QOS同一台机器可能会有端口冲突现象
    qos-enable: false
    qos-accept-foreign-ip: false
  scan:
    # 配置接口扫描包
    base-packages: tm.ucp.service
  protocol:
    # 协议类型
    name: dubbo
    port: 8888
  registry:
    protocol: dubbo
    address: nacos://localhost:8848?username=${username}&password=${password}
    timeout: 3000
    # 默认【public】 配置 namespace
    parameters:
      namespace: eec62008-6264-4e6e-aee8-bebb1c26a8ab

dubbo:
  registry:
     address: nacos://localhost:8848?username=${username}&password=${password}