Eclipse说包装声明不符合预期的包装“ [英] Eclipse says package declaration does not match expected package ""

问题描述

我正在使用Maven构建我的项目。当我在Eclipse中查看它时，它抱怨说

包声明不符合预期的包

Maven能够成功地构建项目。

解决方案

Eclipse需要识别某个文件夹作为源文件夹，以便将内容正确解释为Java源文件。

通常，如果创建一个Java项目，Eclipse会创建一个名为src的文件夹并将其标记为源文件夹。但是，如果您正在处理默认的Maven项目设置，Eclipse将不会自动识别src / main / java作为源文件夹（除非您正在使用插件）。

如果您不确定Eclipse是否将文件夹视为源文件夹或只是常规文件夹，请查看图标（请注意左下角的小包装符号）：

正如你所说，正如你所说，使用Maven，你应该使用一个Maven插件给Eclipse，或者让Maven为Eclipse生成所需的元文件。这可以通过命令（生成.classpath和.project文件）完成：

mvn eclipse：eclipse

未使用Maven但面临此问题的人可以右键单击源文件夹，并将其标记为源文件夹，其中包含构建路径 - >使用为源文件夹'。

I am using Maven to build my project. When I view it in Eclipse, it complains that

package declaration does not match expected package ""

Maven is able to successfully build the project though.

解决方案

Eclipse needs to recognize a certain folder as a 'Source Folder' in order to correctly interpret the contents as Java source files.

Typically, if you create a Java project, Eclipse creates one folder called 'src' and marks it as 'Source Folder'. If you are dealing with a default Maven project setup, however, Eclipse will not automagically recognize 'src/main/java' as a source folder (unless you are using a plugin of course).

If you are not sure whether Eclipse sees your folder as a 'Source Folder' or just a regular folder, take look at the icons (note the small package symbol on the lower left corner):

Since you are, as you stated, working with Maven, you should either use a Maven plugin for Eclipse or have Maven generate the required meta-files for Eclipse. This can be done with the command (generates .classpath and .project files):

mvn eclipse:eclipse

People who are not using Maven, but face this issue, can right-click on their source folder and mark it as source folder with 'Build Path -> Use as source folder'.

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