我在m2eclipse中构建错误，但在命令行上没有使用maven2 - 我的m2eclipse配置错误？

问题描述

我导入的项目如下：

 导入 - > 
 Maven-> 
现有的Maven项目 - > 
导入Maven项目 - > 
  - 选择根目录
  - 选择pom文件
  - 单击完成
  

为了确保m2eclipse正在构建项目，我删除了目标目录，并确保它是由m2eclipse重新创建的。但是与maven的命令行版本完全不同，m2eclipse在源代码中留下了大量的构建错误。

是否可能我没有正确配置m2eclipse？如何查看？

我正在尝试构建。我在。它说方法createNewToken必须覆盖超类方法。

解决方案

更新：与，这里是接受的答案：

$ b $很难说发生的是什么，没有看到那些错误（他们真的是错误？）。请提供一些痕迹。

一个区别是m2eclipse默认使用Maven 3的嵌入版本，这可能是不一样的版本你在命令行上使用。您可以通过 Window V Preferences V Maven V安装进行更改（并添加自己的安装）：

但是，我建议在Eclipse下使用相同的版本，而不是命令行，这很可能不是问题的根本原因，Maven 2构建应该在Maven 3上运行没有问题。

I installed m2eclipse to build a java project in Eclipse.

I imported the project as follows:

Import->
Maven->
Existing Maven Projects->
Import Maven Projects->
- Select root directory
- Select pom file
- Click Finish

To be sure m2eclipse was actually building the project, I deleted the target directory and made sure it was re-created by m2eclipse and it was. But unlike with the command-line version of maven which built everything perfectly, m2eclipse leaves a large number of build errors in the source code.

Is it possible that I did not configure m2eclipse properly? How would I check this?

This is a github link to the project I'm trying to build. I'm getting the @Override build errors at this line. It says "The method createNewToken must override a superclass method".

解决方案

Update: The problem is the same as the one described in ‘Must Override a Superclass Method’ Errors after importing a project into Eclipse and here is what the accepted answer says:

Changing the compiler level to Java 1.6 would make the problem go away. To do so, modify the compiler plugin configuration:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-compiler-plugin</artifactId>
  <version>2.1</version>
  <configuration>
    <source>1.6</source>
    <target>1.6</target>
  </configuration>
</plugin>

And update the project configuration (right-click on the project then Maven V Update Project Configuration) does solve the problem under Eclipse.

Or stick with 1.5 but remove the problematic @Override annotations.

I don't know how Taylor got things working with a Java 1.5 compiler level. And my guess is that the project wouldn't build on the command line with a JDK 5.

---

Hard to say what is happening exactly without seeing those "errors" (are them really errors?). Please provide some traces.

One difference is that m2eclipse uses by default a embedded version of Maven 3 which is probably not the same version that you use on the command line. You can change that through Window V Preferences V Maven V Installation (and add your own installation):

But while I would recommend to use the same version under Eclipse than on the command line, this is very likely not the root cause of the problem, Maven 2 builds should run on Maven 3 without problems.

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