First attempt by a newbie learning

[comonier]

Hello friends, I'm following a tutorial for the first time learning to create a plugin by maven, and the page
https://papermc.io/using-the-api
Tell me to add the code below to the file pom.xml "Add this to your pom.xml:"

<?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>org.example</groupId>
    <artifactId>cobaia</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>

    <repository>
        <id>papermc</id>
        <url>https://papermc.io/repo/repository/maven-public/</url>
    </repository>


    <dependency>
        <groupId>io.papermc.paper</groupId>
        <artifactId>paper-api</artifactId>
        <version>1.18.2-R0.1-SNAPSHOT</version>
        <scope>provided</scope>
    </dependency>

</project>

Once that's done, the program I'm using, Intelloj automatically sends the warning
Line1 error: (when i click it shows repository) starting line

Invalid content was found starting with element '{"http://maven.apache.org/POM/4.0.0":repository}'. One of '{"http://maven.apache.org/POM/4.0.0":parent, "http://maven.apache.org/POM/4.0.0":packaging, "http://maven.apache.org/POM/4.0.0":name, "http://maven.apache.org/POM/4.0.0":description, "http://maven.apache.org/POM/4.0.0":url, "http://maven.apache.org/POM/4.0.0":prerequisites, "http://maven.apache.org/POM/4.0.0":issueManagement, "http://maven.apache.org/POM/4.0.0":ciManagement, "http://maven.apache.org/POM/4.0.0":inceptionYear, "http://maven.apache.org/POM/4.0.0":mailingLists, "http://maven.apache.org/POM/4.0.0":developers, "http://maven.apache.org/POM/4.0.0":contributors, "http://maven.apache.org/POM/4.0.0":licenses, "http://maven.apache.org/POM/4.0.0":scm, "http://maven.apache.org/POM/4.0.0":organization, "http://maven.apache.org/POM/4.0.0":build, "http://maven.apache.org/POM/4.0.0":profiles, "http://maven.apache.org/POM/4.0.0":modules, "http://maven.apache.org/POM/4.0.0":repositories, "http://maven.apache.org/POM/4.0.0":pluginRepositories, "http://maven.apache.org/POM/4.0.0":dependencies, "http://maven.apache.org/POM/4.0.0":reports, "http://maven.apache.org/POM/4.0.0":reporting, "http://maven.apache.org/POM/4.0.0":dependencyManagement, "http://maven.apache.org/POM/4.0.0":distributionManagement}' is expected.

Line2 Error: (when i click it shows repository) ending line

Invalid content was found starting with element '{"http://maven.apache.org/POM/4.0.0":repository}'. One of '{"http://maven.apache.org/POM/4.0.0":parent, "http://maven.apache.org/POM/4.0.0":packaging, "http://maven.apache.org/POM/4.0.0":name, "http://maven.apache.org/POM/4.0.0":description, "http://maven.apache.org/POM/4.0.0":url, "http://maven.apache.org/POM/4.0.0":prerequisites, "http://maven.apache.org/POM/4.0.0":issueManagement, "http://maven.apache.org/POM/4.0.0":ciManagement, "http://maven.apache.org/POM/4.0.0":inceptionYear, "http://maven.apache.org/POM/4.0.0":mailingLists, "http://maven.apache.org/POM/4.0.0":developers, "http://maven.apache.org/POM/4.0.0":contributors, "http://maven.apache.org/POM/4.0.0":licenses, "http://maven.apache.org/POM/4.0.0":scm, "http://maven.apache.org/POM/4.0.0":organization, "http://maven.apache.org/POM/4.0.0":build, "http://maven.apache.org/POM/4.0.0":profiles, "http://maven.apache.org/POM/4.0.0":modules, "http://maven.apache.org/POM/4.0.0":repositories, "http://maven.apache.org/POM/4.0.0":pluginRepositories, "http://maven.apache.org/POM/4.0.0":dependencies, "http://maven.apache.org/POM/4.0.0":reports, "http://maven.apache.org/POM/4.0.0":reporting, "http://maven.apache.org/POM/4.0.0":dependencyManagement, "http://maven.apache.org/POM/4.0.0":distributionManagement}' is expected.

Line3 OK:

Typo: In word 'papermc'

Line4 OK

Typo: In word 'papermc'

As I'm a beginner, I don't know what to do, I got stuck here and I can't go on in the online class where I'm trying to learn.

 

[Loudbook]

Have you run the "clean" lifecycle? I would start with that; when compiling make sure you are clicking "package"