I integrated Maven in Eclipse, then I imported an existing Maven project using import wizard. I got the error: Non-resolvable parent POM

Project build error: Non-resolvable parent POM for org.alfresco.maven:alfresco-sdk-parent:1.1.1: Failure to transfer org.alfresco.maven:alfresco-lifecycle-aggregator:pom:1.1.1 from https://artifacts.alfresco.com/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of alfresco-public has elapsed or updates are forced. Original error: Could not transfer artifact org.alfresco.maven:alfresco-lifecycle-aggregator:pom:1.1.1 from/to alfresco-public (https://artifacts.alfresco.com/nexus/content/groups/public): No response received after 60000here

The error points to the first line of the code which is File Name Pom.xml. I am using Eclipse Kepler.

   //Eclipse shows error in first line
    
<?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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>fosspro</groupId>
    <artifactId>fosspro_aid</artifactId>
    <version>1.0-SNAPSHOT</version>
    <name>fosspro_aid AMP project</name>
    <packaging>amp</packaging>
    <description>Manages the lifecycle of the fosspro_aid AMP (Alfresco Module Package)</description>

    <parent>
        <groupId>org.alfresco.maven</groupId>
        <artifactId>alfresco-sdk-parent</artifactId>
        <version>1.1.1</version>
    </parent>

What can I try next?

You may need to add the repository in your pom (inside project)...

<repositories>
  <repository>
    <id>alfresco-public</id>
    <url>https://artifacts.alfresco.com/nexus/content/groups/public</url>
  </repository>
  <!-- You may not need the snapshots? -->
  <repository>
    <id>alfresco-public-snapshots</id>
    <url>https://artifacts.alfresco.com/nexus/content/groups/public-snapshots</url>
    <snapshots>
      <enabled>true</enabled>
      <updatePolicy>daily</updatePolicy>
    </snapshots>
  </repository>
</repositories>

...or if you prefer, in the settings.xml of your Maven configuration.

I assume that the issue is as follow: the repository address is defined in the pom of the SDK, but in order to access the pom of the SDK, Eclipse needs to know the address of the repository.