mvn install 本地jar包到仓库报错... there is no POM in this directory_mvn install:install-file报错

执行mvn install:install-file –Dfile=/xx/xx/org.restlet-2.4.3.jar -DgroupId=org.restlet.jee -DartifactId=org.restlet -Dversion=2.4.3 -Dpackaging=jar

报错：

The goal you specified requires a project to execute but there is no POM in this directory (/xx/xx). Please verify you invoked Maven from the correct directory

解决方式：添加双引号解决

mvn install:install-file -Dfile="/xx/xx/org.restlet-2.4.3.jar" -DgroupId="org.restlet.jee" -DartifactId="org.restlet" -Dversion="2.4.3" -Dpackaging="jar"