The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path [duplicate]

Answer 1

Include servlet-api-3.1.jar in your dependencies.

• Maven

  
      javax.servlet
      javax.servlet-api
      3.1.0
      provided
  
  

• Gradle

  configurations {
      provided
  }
  sourceSets {
      main { compileClasspath += configurations.provided }
  }
  dependencies {
      provided 'javax.servlet:javax.servlet-api:3.1.0'
  }