error: Task :publishMavenPublicationToNexusRepository FAILED - repository

Question

Here is the error i am getting while deploying artifacts to nexus repository :
Failed to retrieve remote metadata com.example:java-maven-app:1.1.0-SNAPSHOT/maven-metadata.xml: Could not transfer metadata
com.example:java-maven-app:1.1.0-SNAPSHOT/maven-metadata.xml from/to nexus-snapshots (http://64.227.148.173:8081/repository/maven
-snapshots/): authentication failed for http://64.227.148.173:8081/repository/maven-snapshots/com/example/java-maven-app/1.1.0-SN
APSHOT/maven-metadata.xml, status: 401 Unauthorized enter image description hereenter code here
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>java-maven-app</artifactId>
<version>1.1.0-SNAPSHOT</version>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-clean-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.3.5.RELEASE</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- to handle any Java version mismatch, add the following configuration for maven-compiler-plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<distributionManagement>
<snapshotRepository>
<id>nexus-snapshots</id>
<url>http://64.227.148.173:8081/repository/maven-snapshots/</url>
</snapshotRepository>
</distributionManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.3.4.RELEASE</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>net.logstash.logback</groupId>
<artifactId>logstash-logback-encoder</artifactId>
<version>6.4</version>
</dependency>
</dependencies>
</project>
I had added all the required code in pom.xml file and made all changes but getting this error please help me with solving this issue.

Answer 1

That's a 401 error. Login credentials were not sent, or invalid login credentials were sent. You need to ensure the settings.xml file has a "server" section that matches the ID shown in that message after "from/to", which in your case is "nexus-snapshots". That should hold the login credentials needed to access Nexus Repo.
<settings>
<servers>
<server>
<id>nexus-snapshots</id>
<username>userid</username>
<password>password</password>
</server>
</servers>
...
</settings>