即使安装了Maven，Maven也对Joda-Time有所抱怨

Question

因为我想使用ActiveAndroid和ActiveAndroid-Validation，所以我需要使用Maven（直到昨天我才听说过）。 所以我安装了maven，然后尝试安装ActiveAndroid。

我使用JodaTime在ActiveAndroid中编写了一个自定义序列化程序 ，并在ActiveAndroid libs文件夹中包含了一个JodaTime jar。 当我使用ant构建项目时，它运行良好。 我首先使用Maven从JodaTime源文件夹中使用mvn clean install在Maven中下载并安装了JodaTime。 看到以下几行，就成功了：

[INFO] --- maven-install-plugin:2.4:install (default-install) @ joda-time ---
[INFO] Installing /Users/kramer65/Downloads/joda-time-2.3/target/joda-time-2.3.jar to /Users/kramer65/.m2/repository/joda-time/joda-time/2.3/joda-time-2.3.jar
[INFO] Installing /Users/kramer65/Downloads/joda-time-2.3/pom.xml to /Users/kramer65/.m2/repository/joda-time/joda-time/2.3/joda-time-2.3.pom
[INFO] Installing /Users/kramer65/Downloads/joda-time-2.3/target/joda-time-2.3-javadoc.jar to /Users/kramer65/.m2/repository/joda-time/joda-time/2.3/joda-time-2.3-javadoc.jar
[INFO] Installing /Users/kramer65/Downloads/joda-time-2.3/target/joda-time-2.3-sources.jar to /Users/kramer65/.m2/repository/joda-time/joda-time/2.3/joda-time-2.3-sources.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 47.603s
[INFO] Finished at: Thu Sep 26 13:00:54 CEST 2013
[INFO] Final Memory: 12M/81M
[INFO] ------------------------------------------------------------------------

然后，我尝试从ActiveAndroid源文件夹中使用相同的mvn clean install全新安装来安装ActiveAndroid。 但是，这导致了以下错误：

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.095s
[INFO] Finished at: Thu Sep 26 13:01:08 CEST 2013
[INFO] Final Memory: 13M/81M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project activeandroid: Compilation failure: Compilation failure:
[ERROR] /Users/kramer65/dev/repos/ActiveAndroid/src/com/activeandroid/serializer/JodaDateTimeSerializer.java:[3,21] package org.joda.time does not exist
[ERROR] /Users/kramer65/dev/repos/ActiveAndroid/src/com/activeandroid/serializer/JodaDateTimeSerializer.java:[22,16] cannot find symbol
[ERROR] symbol  : class DateTime
[ERROR] location: class com.activeandroid.serializer.JodaDateTimeSerializer
[ERROR] /Users/kramer65/dev/repos/ActiveAndroid/src/com/activeandroid/serializer/JodaDateTimeSerializer.java:[7,24] cannot find symbol
[ERROR] symbol  : class DateTime
[ERROR] location: class com.activeandroid.serializer.JodaDateTimeSerializer
[ERROR] /Users/kramer65/dev/repos/ActiveAndroid/src/com/activeandroid/serializer/JodaDateTimeSerializer.java:[19,26] cannot find symbol
[ERROR] symbol  : class DateTime
[ERROR] location: class com.activeandroid.serializer.JodaDateTimeSerializer
[ERROR] /Users/kramer65/dev/repos/ActiveAndroid/src/com/activeandroid/serializer/JodaDateTimeSerializer.java:[27,28] cannot find symbol
[ERROR] symbol  : class DateTime
[ERROR] location: class com.activeandroid.serializer.JodaDateTimeSerializer
[ERROR] -> [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/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :activeandroid

有人知道我该如何解决吗？ 欢迎所有提示！

== EDIT == ActiveAndroid的pom.xml可以在这里找到。 我没有改变任何东西。

Answer 1

如果您的IDE不抱怨，则意味着您的IDE可以构建项目。

然后，我假设您的IDE不依赖Maven构建。 我建议在Maven和您的IE之间建立更强大的集成。 您不应该手动将库添加到类路径（在IDE中）

您的POM缺少依赖性

<dependency>
  <groupId>joda-time</groupId>
  <artifactId>joda-time</artifactId>
  <version>2.3</version>
</dependency>

Answer 2

当您的构建中包含android-maven-plugin时，您需要提供SDK的路径。 对于此Maven插件，可以通过将其添加为POM的properties部分中的property（android.sdk.path）来完成。

因此，您将获得以下内容：

<properties>
    <android.sdk.path>your/path/here</android.sdk.path>
</properties>

为了快速解决，您可以将其添加到POM的属性部分。 但是，类似这样的本地设置通常转到maven安装内conf目录中的settings.xml文件中。 无论您使用什么pom，这都将使此属性始终存在。 或者，如果跳过activeProfiles部分，则必须在启用该配置文件的情况下调用maven-“ mvn -pandroidProfile全新安装”。

<profiles>
    <profile>
        <id>androidProfile</id>
        <properties>
            <android.sdk.path>your/path/here</android.sdk.path>
        </properties>
    </profile>
</profiles>
<activeProfiles>
    <activeProfile>androidProfile</activeProfile>
</activeProfiles>