Maven项目未能构建 [英] Maven project failed to build

问题描述

我是Maven项目的新手。我将现有的Maven项目导入eclipse，然后进行了新的配置。我尝试运行应用程序，但控制台显示

  [ERROR]无法执行com.google.appengine目标：appengine-maven -plugin：1.9.4：项目helloworld上的devserver（default-cli）：com.google.appengine插件：appengine-maven-plugin：1.9.4要求Maven版本3.1.0  - > [帮助1] 
 [ERROR] 
 [ERROR]要查看错误的完整堆栈跟踪，请使用-e开关重新运行Maven。 
 [ERROR]使用-X开关重新运行Maven以启用完整的调试日志记录。 
 [ERROR] 
 [ERROR]有关错误和可能的解决方案的更多信息，请阅读以下文章：
 [错误] [帮助1] http://cwiki.apache.org / confluence / display / MAVEN / PluginIncompatibleException 
  

我查看了显示的链接。建议将构建环境更新为所需的Maven版本。我搜索它，但发现在pom.xml中进行某些更改。但没有任何工作。任何人都可以告诉我如何解决问题。我安装的Maven版本是 3.0.5 。

解决方案

为了执行此插件，您至少需要maven版本3.1.0。从这里安装（ http://maven.apache.org/download.cgi ）之后它通过在命令行中执行以下命令来检查是否正确安装：

mvn -version

I am new to Maven projects. I imported an existing Maven project to eclipse, then made a new configuration. I tried running the application then but the console shows

[ERROR] Failed to execute goal com.google.appengine:appengine-maven-plugin:1.9.4:devserver (default-cli) on project helloworld: The plugin com.google.appengine:appengine-maven-plugin:1.9.4 requires Maven version 3.1.0 -> [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/PluginIncompatibleException

I checked the link it showed. It suggested to update the build environment to the required Maven version. I searched for it but found out to make certain changes in pom.xml. But nothing worked. Can anyone tell me how to resolve the problem. My installed Maven version is 3.0.5.

解决方案

In order to execute this plugin, you need maven version 3.1.0 at least. Install it from here (http://maven.apache.org/download.cgi) and after that check if it is correctly installed by executing following command in the command line:

mvn -version

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