插件 org.codehaus.mojo:exec-maven-plugin:1.5.0 或其依赖项之一无法解析

Question

I am trying to run my first project "Calculator" on netbeans-11 july version and it gives this error -
Plugin org.codehaus.mojo:exec-maven-plugin:1.5.0 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.codehaus.mojo:exec-maven-plugin:jar:1.5.0: Could not transfer artifact org.codehaus.mojo:exec-maven-plugin:pom:1.5.0 from/to central ( https://repo.maven.apache.org/maven2 ): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.196.215] failed**: Connection timed out: connect -> [Help 1]

my pom.xml file -

<?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.mycompany</groupId>
<artifactId>Calculator</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>12</maven.compiler.source>
    <maven.compiler.target>12</maven.compiler.target>
</properties>
</project>

how to resolve this ?

Answer 1

I had the same issue, make sure your editor have finished downloading all Maven requirementents, also try to update your project under de Maven menu. Finally, make sure you are not behind a proxy, if that is the case, configure your settings.xml like in this answer .