Maven Spring JUnit 在Maven Clean Install时报

问题: Maven Clean Install时, 遇到报错package org.junit does not exist

明显, Unit Test在Compile阶段就被检查了.

而POM.xml里面配置的是:

<dependency>

    <groupId>junit</groupId>

    <artifactId>junit</artifactId>

    <version>4.12</version>

    <scope>test</scope>

</dependency>

所以导致问题发生.

但是为何在Compile阶段(而非Test Phase)就开始读Unit Test代码呢?

原因在于我错误的人为设置了Project的sourceDirectory,

<build>

    <finalName>demo</finalName>

    <sourceDirectory>src</sourceDirectory>

    <plugins>

        <plugin>

        ...

        </plugin>

    </plugins>

</build>

参考自:

http://stackoverflow.com/questions/28173431/maven-error-package-org-junit-does-not-exist