无法在 Eclipse 中创建 Maven 项目 [英] Cannot create Maven Project in eclipse
问题描述
我在公司防火墙后面的 Windows 7 机器上安装了 Eclipse Luna 和 Maven 3.2.3.
尝试从原型创建项目会导致以下错误:
<块引用>无法从任何已配置的存储库中解析原型 org.apache.maven.archetypes:maven-archetype-quickstart:RELEASE.
无法解析工件 org.apache.maven.archetypes:maven-archetype-quickstart:pom:RELEASE
无法解析 org.apache.maven.archetypes 的版本:maven-archetype-quickstart:pom:RELEASE: 找不到元数据 org.apache.maven.archetypes:maven-archetype-quickstart/maven-metadata.xml 在本地 (C:Usersxxxx.m2 epository)
无法解析 org.apache.maven.archetypes 的版本:maven-archetype-quickstart:pom:RELEASE:Could not find metadata org.apache.maven.archetypes:maven-archetype-quickstart/maven-metadata.xml in本地 (C:Usersxxxx.m2 epository)
代理详细信息在 .m2/settings.xml 中配置，并且从 archtype 生成 maven 项目在命令行中工作正常.
我尝试应用 此处 但没有任何效果.远程目录也无法访问.估计是Eclipse的网络设置有问题.我还查看了 this bug report 试图找到一些线索，但无法不太了解如何实施解决方法.
这是我的 settings.xml 文件:
<服务器><服务器><id>nexus</id><用户名>xxxx@xxxx.com</用户名><密码>{XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX}</密码></服务器><服务器><id>部署</id><用户名>xxxx@xxxx.com</用户名><密码>{XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX}</密码></服务器></服务器><镜子><镜子><!--这会将其他所有内容发送到/public --><id>nexus</id><mirrorOf>*</mirrorOf><url>https://nexus-int.xxxx.xxxx.com/nexus/content/groups/public</url></镜像></镜子><个人资料><个人资料><id>nexus</id><!--启用内置中央存储库的快照以直接--><!--所有通过镜像对nexus的请求--><存储库><存储库><id>中央</id><url>http://central</url><releases><enabled>true</enabled></releases><快照><启用>真</启用></快照></repository></repositories><pluginRepositories><插件库><id>中央</id><url>http://central</url><releases><enabled>true</enabled></releases><快照><启用>真</启用></快照></pluginRepository></pluginRepositories></个人资料></个人资料><活动配置文件><!--使配置文件始终处于活动状态--><activeProfile>nexus</activeProfile></activeProfiles></设置> 有什么想法吗?
谢谢
托玛
同样的问题，已解决.
我会解释问题和解决方案，以帮助他人.
我的软件是:
Windows 7Eclipse 4.4.1 (Luna SR1)m2e 1.5.0.20140606-0033(来自 eclipse 存储库:http://download.eclipse.org/releases/luna)我通过代理访问互联网.
我的问题是一样的:
- 刚刚安装了 m2e，进入菜单:文件 > 新建 > 其他 > Maven > Maven 项目 > 下一步 > 下一步.
- 选择目录:所有目录"和过滤器:maven-archetype-quickstart"，然后点击搜索结果，然后点击下一步"按钮.
- 然后输入组 ID:test_gr"和工件 ID:test_art"，然后单击完成"按钮.
- 收到无法解析原型..."错误.
经过多次尝试和错误，并阅读了很多页面，我终于找到了解决方案.解决方案的一些要点:
- 它使用 m2e 附带的默认(嵌入式)Maven 安装 (3.2.1/1.5.0.20140605-2032).
- 因此不需要额外的(外部)Maven 安装.
- 不需要特殊的 m2e 配置.
解决方案是:
- 打开日食.
- 恢复 m2e 原始首选项(如果您更改了其中任何一个):单击菜单:窗口 > 首选项 > Maven > 恢复默认值.对Maven"项下的所有树项执行相同操作:原型、发现、错误/警告、安装、生命周期映射、模板、用户界面、用户设置.点击确定"按钮.
- 复制(例如到记事本窗口)用户设置文件的路径.要查看路径，请再次单击菜单:Window > Preferences > Maven > User Settings，路径位于用户设置"文本框中.您必须手动编写路径，因为无法复制和粘贴.处理记事本的路径后，不要关闭首选项"窗口.
- 在已打开的首选项窗口中，单击打开文件"链接.关闭 Preferences 窗口，您将看到已在 Eclipse 编辑器中打开的settings.xml"文件.
- 编辑器底部将有 2 个选项卡:设计"和来源".单击源"选项卡.您将看到所有源代码 (xml).
- 删除所有源代码:点击代码，按control+a，按del".
- 将以下代码复制到编辑器(并自定义大写值):
<代理><代理><active>true</active><protocol>http</protocol><host>YOUR.PROXY.IP.OR.NAME</host><端口>您的代理端口</端口><username>您的代理用户名(如果不需要，则为空)</username><password>您的代理密码(如果不需要，则为空)</password><nonProxyHosts>您的代理排除主机列表(或空)</nonProxyHosts></代理></代理></设置> - 保存文件:control+s.
- 退出 Eclipse:菜单文件 > 退出.
- 在 Windows 资源管理器中打开您复制的路径(没有文件名，只有目录路径).
- 您可能会看到 xml 文件(settings.xml")和一个目录(repository").删除目录(存储库"):右键单击 > 删除 > 是.
- 启动 Eclipse.
- 现在您将能够创建一个 Maven 项目:文件 > 新建 > 其他 > Maven > Maven 项目 > 下一步 > 接下来，选择目录:所有目录"和过滤器:maven-archetype-quickstart"，点击搜索结果，然后点击按钮 Next，输入Group Id: test_gr"和Artifact Id: test_art"，点击 Finish 按钮.
最后，我想给 m2e 开发者一个建议，让配置更容易.从互联网(从存储库)安装 m2e 后，m2e 应该检查 Eclipse 是否正在使用代理(首选项 > 常规 > 网络连接).如果 Eclipse 使用代理，则 m2e 应向用户显示一个对话框:
m2e 检测到 Eclipse 正在使用代理访问 Internet.你想让我为嵌入式创建一个用户设置文件 (settings.xml)马云软件?[ 是 ] [ 否 ]如果用户单击是，则 m2e 应通过从 Eclipse 首选项复制代理值来自动创建settings.xml"文件.
I have Eclipse Luna and Maven 3.2.3 installed on a Windows 7 machine behind a corporate firewall.
Trying to create a project from an archetype results in the following error:
Could not resolve archetype org.apache.maven.archetypes:maven-archetype-quickstart:RELEASE from any of the configured repositories.
Could not resolve artifact org.apache.maven.archetypes:maven-archetype-quickstart:pom:RELEASE
Failed to resolve version for org.apache.maven.archetypes:maven-archetype- quickstart:pom:RELEASE: Could not find metadata org.apache.maven.archetypes:maven-archetype-quickstart/maven-metadata.xml in local (C:Usersxxxx.m2 epository)
Failed to resolve version for org.apache.maven.archetypes:maven-archetype-quickstart:pom:RELEASE: Could not find metadata org.apache.maven.archetypes:maven-archetype-quickstart/maven-metadata.xml in local (C:Usersxxxx.m2 epository)
Proxy details are configured in .m2/settings.xml and generating a maven project from an archtype works fine in command line.
I tried to apply the solutions from here but none worked. The remote catalog is not acessible as well. I reckon it's a problem with the network settings of Eclipse. I also looked at this bug report to try and find some clues and couldn't really understand how to implement the workaround.
here is my settings.xml file:
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
http://maven.apache.org/xsd/settings-1.0.0.xsd">
<servers>
<server>
<id>nexus</id>
<username>xxxx@xxxx.com</username>
<password>{XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX}</password>
</server>
<server>
<id>deployment</id>
<username>xxxx@xxxx.com</username>
<password>{XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX}</password>
</server>
</servers>
<mirrors>
<mirror>
<!--This sends everything else to /public -->
<id>nexus</id>
<mirrorOf>*</mirrorOf>
<url>https://nexus-int.xxxx.xxxx.com/nexus/content/groups/public</url>
</mirror>
</mirrors>
<profiles>
<profile>
<id>nexus</id>
<!--Enable snapshots for the built in central repo to direct -->
<!--all requests to nexus via the mirror -->
<repositories>
<repository>
<id>central</id>
<url>http://central</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>http://central</url>
<releases><enabled>true</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
<activeProfiles>
<!--make the profile active all the time -->
<activeProfile>nexus</activeProfile>
</activeProfiles>
</settings>
Any ideas?
Thanks
Tomer
Same problem here, solved.
I will explain the problem and the solution, to help others.
My software is:
Windows 7
Eclipse 4.4.1 (Luna SR1)
m2e 1.5.0.20140606-0033
(from eclipse repository: http://download.eclipse.org/releases/luna)
And I'm accessing internet through a proxy.
My problem was the same:
- Just installed m2e, went to menu: File > New > Other > Maven > Maven project > Next > Next.
- Selected "Catalog: All catalogs" and "Filter: maven-archetype-quickstart", then clicked on the search result, then on button Next.
- Then entered "Group Id: test_gr" and "Artifact Id: test_art", then clicked on Finish button.
- Got the "Could not resolve archetype..." error.
After a lot of try-and-error, and reading a lot of pages, I've finally found a solution to fix it. Some important points of the solution:
- It uses the default (embedded) Maven installation (3.2.1/1.5.0.20140605-2032) that comes with m2e.
- So no aditional (external) Maven installation is required.
- No special m2e config is required.
The solution is:
- Open eclipse.
- Restore m2e original preferences (if you changed any of them): Click on menu: Window > Preferences > Maven > Restore defaults. Do the same for all tree items under "Maven" item: Archetypes, Discovery, Errors/Warnings, Instalation, Lifecycle Mappings, Templates, User Interface, User Settings. Click on "OK" button.
- Copy (for example to a notepad window) the path of the user settings file. To see the path, click again on menu: Window > Preferences > Maven > User Settings, and the path is at the "User settings" textbox. You will have to write the path manually, since it is not posible to copy-and-paste. After coping the path to the notepad, don't close the Preferences window.
- At the Preferences window that is already open, click on the "open file" link. Close the Preferences window, and you will see the "settings.xml" file already openned in a Eclipse editor.
- The editor will have 2 tabs at the bottom: "Design" and "Source". Click on "Source" tab. You will see all the source code (xml).
- Delete all the source code: Click on the code, press control+a, press "del".
- Copy the following code to the editor (and customize the uppercased values):
<settings> <proxies> <proxy> <active>true</active> <protocol>http</protocol> <host>YOUR.PROXY.IP.OR.NAME</host> <port>YOUR PROXY PORT</port> <username>YOUR PROXY USERNAME (OR EMPTY IF NOT REQUIRED)</username> <password>YOUR PROXY PASSWORD (OR EMPTY IF NOT REQUIRED)</password> <nonProxyHosts>YOUR PROXY EXCLUSION HOST LIST (OR EMPTY)</nonProxyHosts> </proxy> </proxies> </settings>
- Save the file: control+s.
- Exit Eclipse: Menu File > Exit.
- Open in a Windows Explorer the path you copied (without the filename, just the path of directories).
- You will probaly see the xml file ("settings.xml") and a directoy ("repository"). Remove the directoy ("repository"): Right click > Delete > Yes.
- Start Eclipse.
- Now you will be able to create a maven project: File > New > Other > Maven > Maven project > Next > Next, select "Catalog: All catalogs" and "Filter: maven-archetype-quickstart", click on the search result, then on button Next, enter "Group Id: test_gr" and "Artifact Id: test_art", click on Finish button.
Finally, I would like to give a suggestion to m2e developers, to make config easier. After installing m2e from the internet (from a repository), m2e should check if Eclipse is using a proxy (Preferences > General > Network Connections). If Eclipse is using a proxy, the m2e should show a dialog to the user:
m2e has detected that Eclipse is using a proxy to access to the internet.
Would you like me to create a User settings file (settings.xml) for the embedded
Maven software?
[ Yes ] [ No ]
If the user clicks on Yes, then m2e should create automatically the "settings.xml" file by copying proxy values from Eclipse preferences.
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