如何处理Android/Maven项目中缺少的src/test/java源文件夹?

I'm not very experienced with Maven in combination with Android yet, so I followed these instructions to make a new Android project. When the project has been created, I get the following error message:

我对Maven与Android结合的经验还不是很丰富，所以我按照这些说明做了一个新的Android项目。当项目创建后，我得到以下错误消息:

Project 'xxx-1.0-SNAPSHOT' is missing required source folder: 'src/test/java'

项目“xxx-1.0 snapshot”缺少所需的源文件夹:“src/test/java”

When I try to add a new source folder with New->Other->Java-Source Folder with src/test/java, I get another error message:

当我尝试添加一个新的-> -> java - source文件夹和src/test/java的新源文件夹时，我得到了另一个错误信息:

The folder is already a source folder.

该文件夹已经是一个源文件夹。

But I don't have any src/test/java folder in my project. How should I deal with that? What's the clean way to setup the project, because I assume that there is something missing in this instruction. So what is the Maven way to let src/test/java appear?

但是我的项目中没有任何src/test/java文件夹。我该怎么处理呢?什么是建立项目的干净方式，因为我假设这个指令中缺少了一些东西。那么，让src/test/java出现的Maven方式是什么呢?

I'm using Eclipse Juno, m2e 1.1.0, Android Configuration for m2e 0.4.2.

我正在使用Eclipse Juno, m2e 1.1.0, m2e 0.4.2的Android配置。

7 个解决方案

#1

I realise this annoying thing too since latest m2e-android plugin upgrade (version 0.4.2), it happens in both new project creation and existing project import (if you don't use src/test/java).

自从最新的m2e-android插件升级(版本0.4.2)以来，我也意识到这个烦人的事情，它发生在新项目创建和现有项目导入(如果不使用src/test/java)中。

It looks like m2e-android (or perhaps m2e) now always trying to add src/test/java as a source folder, regardless of whether it is actually existed in your project directory, in the .classpath file:

看起来m2e-android(或者m2e)现在总是试图添加src/test/java作为源文件夹，不管它是否实际存在于您的项目目录中，在.classpath文件中:

<classpathentry kind="src" output="bin/classes" path="src/test/java">
  <attributes>
    <attribute name="maven.pomderived" value="true"/>
  </attributes>
</classpathentry>

As it is already added in the project metadata file, so if you trying to add the source folder via Eclipse, Eclipse will complain that the classpathentry is already exist:

由于它已经添加到项目元数据文件中，所以如果您试图通过Eclipse添加源文件夹，Eclipse将会抱怨classpathentry已经存在:

There are several ways to fix it, the easiest is manually create src/test/java directory in the file system, then refresh your project by press F5 and run Maven -> Update Project (Right click project, choose Maven -> Update Project...), this should fix the missing required source folder: 'src/test/java' error.

有几种方法可以修复它，最简单的方法是在文件系统中手动创建src/test/java目录，然后按F5刷新项目并运行Maven ->更新项目(右键单击项目，选择Maven ->更新项目……)，这应该可以修复丢失的所需的源文件夹:“src/test/java”错误。

#2

We can add java folder from

我们可以从其中添加java文件夹

1. Build Path -> Source.
2. 构建路径- >来源。
3. click on Add Folder.
4. 点击添加文件夹。
5. Select main as the container.
6. 选择main作为容器。
7. click on Create Folder.
8. 点击创建文件夹。
9. Enter Folder name as java.
10. 输入文件夹名称为java。
11. Click on Finish
12. 单击Finish

It works fine.

它将正常工作。

#3

I solve the problem by creating a folder named "src/test/resources" first, then i rename the folder to "src/test/java" ,finally create a "src/test/resources" folder again .It works .

我先创建一个名为“src/test/resources”的文件夹，然后将文件夹重命名为“src/test/java”，最后再创建一个“src/test/resources”文件夹。

#4

This is possibly caused due to lost source directory.

这可能是由于源目录丢失造成的。

Right click on the folder src -> Change to Source Folder

右键单击文件夹src ->更改为源文件夹

#5

I had the same issue, fixed it. Create the missing folder directly in your file system (Using windows explorer for example) . And then, refresh your project under eclipse.

我有同样的问题，解决了。直接在文件系统中创建丢失的文件夹(例如使用windows资源管理器)。然后，在eclipse中刷新项目。

#6

This is a bug in the Android Connector for M2E (m2e-android) that was recently fixed:

这是最近修复的M2E (M2E - Android) Android连接器中的一个bug:

https://github.com/rgladwell/m2e-android/commit/2b490f900153cd34fff1cec47fe5aeffabe44d87

https://github.com/rgladwell/m2e-android/commit/2b490f900153cd34fff1cec47fe5aeffabe44d87

This fix has been merged and will be available with the next release. In the meantime you can test the new fix by installing from the following update site:

此修复已被合并，并将在下一个版本中提供。在此期间，您可以通过安装以下更新站点来测试新的修复:

http://rgladwell.github.com/m2e-android/updates/master/

http://rgladwell.github.com/m2e-android/updates/master/

#7

Removing the m2 plugin from startup-up plugin's list and doing a Maven->Update Projects on all the projects worked for me.

从startupup插件列表中删除m2插件，并对所有项目执行Maven->更新项目。

Note** One should not create additional folders to avoid merging them while using SVN/Git based branches.

注意**在使用基于SVN/Git的分支时，不应该创建其他文件夹以避免合并它们。