yarn init 에러 문의

 안녕하세요 선생님

퍼샤드 패턴에서 58분쯤 보면

yarn init이라고 입력을 하시던데

저의 경우에는 에러가 뜹니다.

ERROR: init is not COMMAND nor fully qualified CLASSNAME.
Usage: yarn [OPTIONS] SUBCOMMAND [SUBCOMMAND OPTIONS]
 or    yarn [OPTIONS] CLASSNAME [CLASSNAME OPTIONS]

왜 입력 값이 충족되지 않았다고 하는 걸까요?

참고로 제 node.js 버전은 18대입니다.

혹시몰라 전체적인 에러메세지 같이 첨부합니다!

(base) ➜  01-05-token-count-api-facade-import git:(master) ✗ yarn init
ERROR: init is not COMMAND nor fully qualified CLASSNAME.
Usage: yarn [OPTIONS] SUBCOMMAND [SUBCOMMAND OPTIONS]
 or    yarn [OPTIONS] CLASSNAME [CLASSNAME OPTIONS]
  where CLASSNAME is a user-provided Java class

  OPTIONS is none or any of:

--buildpaths                       attempt to add class files from build tree
--config dir                       Hadoop config directory
--daemon (start|status|stop)       operate on a daemon
--debug                            turn on shell script debug mode
--help                             usage information
--hostnames list[,of,host,names]   hosts to use in worker mode
--hosts filename                   list of hosts to use in worker mode
--loglevel level                   set the log4j level for this command
--workers                          turn on worker mode

  SUBCOMMAND is one of:


    Admin Commands:

daemonlog            get/set the log level for each daemon
node                 prints node report(s)
rmadmin              admin tools
scmadmin             SharedCacheManager admin tools

    Client Commands:

applicationattempt   prints applicationattempt(s) report
app|application      prints application(s) report/kill application/manage long running application
classpath            prints the class path needed to get the hadoop jar and the required libraries
cluster              prints cluster information
container            prints container(s) report
envvars              display computed Hadoop environment variables
fs2cs                converts Fair Scheduler configuration to Capacity Scheduler (EXPERIMENTAL)
jar <jar>            run a jar file
logs                 dump container logs
nodeattributes       node attributes cli client
queue                prints queue information
schedulerconf        Updates scheduler configuration
timelinereader       run the timeline reader server
top                  view cluster information
version              print the version

    Daemon Commands:

nodemanager          run a nodemanager on each worker
proxyserver          run the web app proxy server
registrydns          run the registry DNS server
resourcemanager      run the ResourceManager
router               run the Router daemon
sharedcachemanager   run the SharedCacheManager daemon
timelineserver       run the timeline server

SUBCOMMAND may print help when invoked w/o parameters or with -h.

구글링은 해봐도 못찾겠고,

그나마 힌트가 될만한건 이전에 hadoop 설치하면서 yarn이 같이 깔렸던 것 같은데, 그것과 충돌이 되서 그럴 수 있다는 정보까진 찾았습니다!

brew uninstall hadoop 으로 하둡을 날려버렸더니 yarn 명령이 아예 작동이 안되는 것으로 봐서는 맞는 것 같습니다.
brew install yarn으로 설치 다시 해줬더니 작동은 잘 됩니다!

선생님 이럴경우에 삭제 말고 따로 하둡과 충돌할 경우에 hadoop의 yarn과 node.js의 yarn을 별도로 관리하는 방법은 없을까요?