Plugin ‘org.springframework.boot:spring-boot-maven-plugin:‘ not found

I only wrote the following in my own pom.xml file, I kept reporting red, but I couldn’t find the reason.

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

Then I added the official dependency and can download normally

Note: The dependency is added to the dependencieslabel! ! !

<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-maven-plugin -->
<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-maven-plugin</artifactId>
	<version>2.4.0</version>
</dependency>

Hope it helps you