Maven開發中jar衝突最令人頭疼：

[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[WARNING] 'dependencyManagement.dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: net.sf.ezmorph:ezmorph:jar -> duplicate declaration of version ${
 
ezmorph.version} @ line 1030, column 16
[ERROR] Child module E:\EclipseHomeWork\parent\upiweb-cms of E:\EclipseHomeWork\parent\pom.xml does not exist @ 
[ERROR] Child module E:\EclipseHomeWork\parent\upiweb-cms0719 of E:\EclipseHomeWork\parent\pom.xml does not exist @ 
[ERROR] Child module E:\EclipseHomeWork\parent\upiweb-
 
interface of E:\EclipseHomeWork\parent\pom.xml does not exist @ 
 @ 
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]   
[ERROR]   The project com.upi.web:upiweb-parent:1.0-SNAPSHOT (E:\EclipseHomeWork\parent\pom.xml) has 3 errors
[ERROR]     Child module E:\EclipseHomeWork\parent\upiweb-
 
cms of E:\EclipseHomeWork\parent\pom.xml does not exist
[ERROR]     Child module E:\EclipseHomeWork\parent\upiweb-cms0719 of E:\EclipseHomeWork\parent\pom.xml does not exist
[ERROR]     Child module E:\EclipseHomeWork\parent\upiweb-interface of E:\EclipseHomeWork\parent\pom.xml does not exist
[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/ProjectBuildingException

反正就是解決衝突問題的
網上看了好多部落格或者CSDN，感覺都是放屁似的，根本沒有一點用，當時可能博主轉發的或者什麼的，為了欺騙光大程式設計師的瀏覽次數吧

其實也不明白他們為啥總結，那不就是對之前錯誤的認識。

百度了N種方法，就是解決不了，說用

為什麼要安裝一

些外掛呢？那不是廢話啊，肯定只有一個好處，好用啊，一個好用的外掛可以給你節省多少時間

廢話不多說直接上安裝步驟：
File --> settings --> plugs -->

我本地是安裝好的(之前太忙了，沒寫這篇部落格)

安裝完之後呢，具體是什麼作用呢，我相信你只有你們用的時候自然會關注的

開啟pom.xml ----> Dependency Analyzer

然後開啟之後長這個比樣：

然後開始 右鍵： excluede 解決了

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