问题内容：

/Users/air/Library/Java/JavaVirtualMachines/openjdk-15.0.1/Contents/Home/bin/java -Dmaven.multiModuleProjectDirectory=/private/var/folders/mc/bbjk6xkn71j7byjbxw22ln040000gn/T/archetypetmp "-Dmaven.home=/Applications/IntelliJ IDEA.app/Contents/plugins/maven/lib/maven3" "-Dclassworlds.conf=/Applications/IntelliJ IDEA.app/Contents/plugins/maven/lib/maven3/bin/m2.conf" "-Dmaven.ext.class.path=/Applications/IntelliJ IDEA.app/Contents/plugins/maven/lib/maven-event-listener.jar" "-javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=51777:/Applications/IntelliJ IDEA.app/Contents/bin" -Dfile.encoding=UTF-8 -classpath "/Applications/IntelliJ IDEA.app/Contents/plugins/maven/lib/maven3/boot/plexus-classworlds.license:/Applications/IntelliJ IDEA.app/Contents/plugins/maven/lib/maven3/boot/plexus-classworlds-2.6.0.jar" org.codehaus.classworlds.Launcher -Didea.version2020.1.2 -s /Users/air/.m2/settings.xml -Dmaven.repo.local=/Users/air/.m2/repository -DinteractiveMode=false -DgroupId=org.example -DartifactId=maven04 -Dversion=1.0-SNAPSHOT -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeArtifactId=maven-archetype-webapp -DarchetypeVersion=RELEASE org.apache.maven.plugins:maven-archetype-plugin:RELEASE:generate
[ERROR] Error executing Maven.
[ERROR] The specified user settings file

问题原因：
创建工程时使用 /Users/air/.m2/settings.xml，但实际文件夹没有此文件

问题解决：
进入maven本地的安装目录，将settings拷贝到Users/air/.m2文件夹下

➜  conf pwd