Maven clean/install failing

when I'm trying to clean/install maven following error I'm facing... any suggestions Error: Could not find or load main class Pictures.spring-tool-suite-3.7.1.RELEASE-e4.5.1-win32-x86_64.sts-bundle.sts-3.7.1.RELEASE.configuration.org.eclipse.osgi.24.0..cp.;.D:.Saved

Two ways:

1. below setting is tested in intellij IDE:
   edit configuration->Configuration->Main class: specify fully qualified path.
2. you can specify main class through maven plugin in your pom.xml like below:.

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        <configuration>
          <archive>
            <manifest>
              <addClasspath>true</addClasspath>
              <mainClass>fully.qualified.MainClass</mainClass>
            </manifest>
          </archive>
        </configuration>
      </plugin>
    </plugins>
  </build>