Trying to execute simple spring-boot application, getting an marker error,

Question

says cannot be read or is not a valid ZIP file, /.m2/repository/org/springframework/spring-web/4.3.11.RELEASE/spring-web-4.3.11.RELEASE.jar in project

This may be a STS maven error, i tried the same with eclipse mars 2, it works fine .. not understanding where is the problem ..? need help ... thanks

pom.xml

http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0

<groupId>com.de.course</groupId>
<artifactId>course-api</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>course-api</name>
<description>Course API Data</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.7.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.derby</groupId>
        <artifactId>derby</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

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

project structure

Maven Dependencies folder from project

Answer 1

Perhaps jar is corrupted while downloading. Delete the jars from .m2 folder and update project from eclipse (Maven -> Update project). It should download deleted dependencies automatically.