不能在eclipse中创建Maven项目 [英] Cannot create Maven Project in eclipse
问题描述
尝试从原型创建项目会导致以下错误：
无法从任何已配置的存储库解析原型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 in local（C：\Users\xxxx.m2\repository）
无法解析org.apache.maven.archetypes的版本：maven-archetype- quickstart：pom：RELEASE：无法在本地（C：\Users\xxxx.m2\repository）中找到元数据org.apache.maven.archetypes：maven-archetype-quickstart / maven-metadata.xml
代理详细信息在 .m2 / settings.xml 中配置，并从archtype在命令行中工作正常。
我尝试从这里，但没有工作。远程目录也不可接受。我认为这是Eclipse的网络设置问题。我还查看了这个错误报告，尝试找到一些线索和真的不了解如何实现解决方法。
这是我的settings.xml文件：
< 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>
<！ - 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>
< / mirror>
< / mirrors>
<个人资料>
<个人资料>
< id> nexus< / id>
<！ - 启用内置中央repo的快照直接 - >
<！ - 通过镜像对nexus的所有请求 - >
< repositories>
< repository>
< id> central< / id>
< url> http：// center< / url>
< releases>< enabled> true< / enabled>< / releases>
< snapshots>< enabled> true< / enabled>< / snapshots>
< / repository>
< / repositories>
< pluginRepositories>
< pluginRepository>
< id> central< / id>
< url> http：// center< / url>
< releases>< enabled> true< / enabled>< / releases>
< snapshots>< enabled> true< / enabled>< / snapshots>
< / pluginRepository>
< / pluginRepositories>
< / profile>
< / profiles>
< activeProfiles>
<！ - 使配置文件始终处于活动状态 - >
< activeProfile> nexus< / activeProfile>
< / activeProfiles>
< / settings>
任何想法？
谢谢
Tomer
同样的问题，解决。
我将解释问题和解决方案，以帮助他人。
我的软件是： / p>
Windows 7
Eclipse 4.4.1（Luna SR1）
m2e 1.5.0.20140606-0033
（从eclipse存储库：http://download.eclipse.org/releases/luna）
我正在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：所有目录然后点击搜索结果，然后点击Next。
- 然后输入Group Id：test_gr和Artifact Id：test_art，然后点击完成按钮。
经过大量的尝试和错误，并且阅读了很多页面，我终于找到了解决方案。解决方案的一些重点：
- 它使用默认（嵌入式）Maven安装（3.2.1 / 1.5.0.20140605-2032）由m2e提供。
- 所以不需要安装（外部）Maven。
- 不需要特殊的m2e配置
解决方案是：
- 打开eclipse。
- 恢复m2e原始首选项（如果您更改任何一个）：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。
- 将用户设置文件的路径复制（例如记事本窗口）。要查看路径，请再次单击菜单：窗口>首选项> Maven>用户设置，路径位于用户设置文本框中。您将不得不手动编写路径，因为它不可复制和粘贴。在将路径应用到记事本之后，请勿关闭首选项窗口。
- 在已打开的首选项窗口中，单击打开文件链接。关闭首选项窗口，您将看到已经在Eclipse编辑器中打开的settings.xml文件。
- 编辑器将在底部有2个选项卡：设计和源。点击源选项卡。您将看到所有源代码（xml）。
- 删除所有源代码：点击代码，按控制+ a，按del。
- 将以下代码复制到编辑器（并自定义上限值）：
<设置>
<代理>
<代理>
< active> true< / active>
< protocol> http< / protocol>
< host> YOUR.PROXY.IP.OR.NAME< / host>
< port>您的PROXY PORT< / port>
< username>您的PROXY USERNAME（如果不需要，则为空）< / username>
< password>您的代码密码（如果不需要，则为空）< / password>
< nonProxyHosts>您的代码排除主机列表（或空）< / nonProxyHosts>
< / proxy>
< /代理>
< / settings>
- 保存文件：control +
- 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（不包含文件名，目录）。
- 您可以查看xml文件（settings.xml）和directoy（repository）。删除directoy（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Catalog：All catalogs和Filter：maven-archetype-quickstart，点击搜索结果，然后点击按钮下一步，输入Group Id ：test_gr和Artifact Id：test_art，点击完成按钮。
最后，我想给一个建议到m2e开发人员，使配置更容易。从互联网（从存储库）安装m2e后，m2e应检查Eclipse是否正在使用代理（首选项>常规>网络连接）。如果Eclipse正在使用代理，m2e应该向用户显示一个对话框：
m2e已经检测到Eclipse正在使用代理访问互联网。
您要我为嵌入式
Maven软件创建一个用户设置文件（settings.xml）吗？
[是] [否]
如果用户点击是，那么m2e应该通过从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:\Users\xxxx.m2\repository)
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:\Users\xxxx.m2\repository)
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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