Linux7.4下使用Maven編譯打包elasticsearch-analysis-ik-1.8.1.zip，執行：mvn package時報錯，借"u012348345"部落格圖一用：

執行
	unzip elasticsearch-analysis-ik-1.8.1.zip -d ik
	cd ik
	mvn package

果斷報錯：

	[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (/elasticsearch/ik). Please verify you invoked Maven from the correct directory. -> [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 articles:
	[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MissingProjectException
 

報錯原因：

	執行mvn package的目錄缺少pom.xml檔案

分析(報錯是必然的)：

上圖教程中
	unzip elasticsearch-analysis-ik-1.8.1.zip -d ik
執行後目錄如下：
	/../ik/elasticsearch-analysis-ik-1.8.1
	cd ik
	並沒有進入elasticsearch-analysis-ik-1.8.1目錄下
	ll
	elasticsearch-analysis-ik-1.8.1(僅此資料夾)
	需要進入elasticsearch-analysis-ik-1.8.1目錄再mvn package

實操：

	unzip elasticsearch-analysis-ik-1.8.1.zip
	cd elasticsearch-analysis-ik-1.8.1
	mvn package