Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean

Streamlining the project structure and dependencies

@SpringBootApplication, the ultimate triple threat, decoratively combines @EnableAutoConfiguration, @ComponentScan, and @Configuration. Ensure your application is graced by its presence.

@SpringBootApplication // like a Swiss knife of Spring Boot
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args); // Let's boot it up!
    }
}
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Your application runs on spring-boot-starter-web, so confirm its presence along with spring-boot-starter-tomcat in your pom.xml file. A neat and decluttered pom.xml is instrumental to avoid FactoryBean-not-found-exception.

Resolving conflicts between dependencies and annotations

Execution of SpringApplication.run(), with the main class as a parameter, breathes life into your application.

public static void main(String[] args) {
    SpringApplication.run(MyApplication.class, args);  // It's alive!
}
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Sprinkle some @EnableScheduling in your ScheduledTasks class and let Spring's auto-wiring magic take care of your scheduling issues.

Emphasize on correctness and compatibility of your Spring Boot dependencies to avoid falling into an “annotation hell.”

Debugging startup issues

Spring Boot's auto-configuration report, --debug, sheds light on missing beans or misconfigurations. These insights simplify the debugging of your startup issues.

For projects initiated with SPRING INITIALIZR, it's advised to verify the dependencies and build configuration.

Managing your dependencies effectively

Leverage Spring Boot Starters like spring-boot-starter-web to streamline your dependencies. Use <exclusions> and dependency resolution strategies when faced with conflicts in Maven and Gradle, respectively.