mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
报错：
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:3
.0.1:generate (default-cli) on project standalone-pom: Execution default-cli of
goal org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate failed: Plug
in org.apache.maven.plugins:maven-archetype-plugin:3.0.1 or one of its dependenc
ies could not be resolved: Could not transfer artifact org.codehaus.plexus:plexu
s-component-annotations:jar:1.6 from/to central (https://repo.maven.apache.org/m
aven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.24.2
15] failed: Connection timed out: connect -> [Help 1]
求解答!!!
http://doc.okbase.net/Josh_Persistence/archive/192456.html
Connection timed out: connect ，连接超时了，重新启用命令，增加参数-DarchetypeCatalog=internal，运行后就可以了
[root@localhost ~]# mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -Darchetyp
eArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 -DinteractiveMode=false[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> maven-archetype-plugin:3.2.1:generate (default-cli) > generate-sources @ standalone-pom >>
[INFO]
[INFO] <<< maven-archetype-plugin:3.2.1:generate (default-cli) < generate-sources @ standalone-pom <<
<[INFO]
[INFO] --- maven-archetype-plugin:3.2.1:generate (default-cli) @ standalone-pom ---
[INFO] Generating project in Batch mode
[WARNING] No archetype found in remote catalog. Defaulting to internal catalog
[INFO] ----------------------------------------------------------------------------
[INFO] Using following parameters for creating project from Archetype: maven-archetype-quickstart:1.4
[INFO] ----------------------------------------------------------------------------
[INFO] Parameter: groupId, Value: com.mycompany.app
[INFO] Parameter: artifactId, Value: my-app
[INFO] Parameter: version, Value: 1.0-SNAPSHOT
[INFO] Parameter: package, Value: com.mycompany.app
[INFO] Parameter: packageInPathFormat, Value: com/mycompany/app
[INFO] Parameter: package, Value: com.mycompany.app
[INFO] Parameter: groupId, Value: com.mycompany.app
[INFO] Parameter: artifactId, Value: my-app
[INFO] Parameter: version, Value: 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.237 s
[INFO] Finished at: 2022-04-28T14:54:58+08:00
[INFO] Final Memory: 18M/43M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:3.2.1:generate (defaul
t-cli) on project standalone-pom: A Maven project already exists in the directory /root/my-app -> [Help 1][ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following artic
les:[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
这个报错是是什么情况，求大神帮忙解决一下