eclipse Groovy/Grails - 无法解析类

Groovy/Grails - Unable to Resolve Class

提问by skaz

I am trying to build a Grails project in STS and am getting many error messages of the form: Groovy:unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolderas well as others like Groovy:unable to resolve class org.grails.plugins.springsecurity.service.AuthenticateService. I have Grails 1.3.7 selected in the Project Properties, but I don't see an item for 'Grails Depedencies' like I do when I create a sample project. Is this the problem? How can I add it back in?

我正在尝试在 STS 中构建一个 Grails 项目，并且收到了许多以下形式的错误消息：Groovy:unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder以及其他类似Groovy:unable to resolve class org.grails.plugins.springsecurity.service.AuthenticateService. 我在“项目属性”中选择了 Grails 1.3.7，但我没有像创建示例项目时那样看到“Grails Depedencies”项。这是问题吗？我怎样才能把它加回来？

回答by skaz

I don't know why, but here are the steps I took to solve the problem:

我不知道为什么，但这是我为解决问题而采取的步骤：

1. Right click on the project and go to Grails Tools -> Enable Dependency Management
2. Grails Tools -> Refresh Dependencies. This correctly added the 'Grails Dependencies' library.
3. I still had plugin errors. I for some reason had to uninstall them and then reinstall them for the project to realize they were there.

1. 右键单击项目并转到 Grails 工具 -> 启用依赖项管理
2. Grails 工具 -> 刷新依赖项。这正确添加了“Grails 依赖项”库。
3. 我仍然有插件错误。由于某种原因，我不得不卸载它们，然后为项目重新安装它们以意识到它们在那里。

回答by biniam

For anyone who is using Grails >= 2.4

对于使用 Grails >= 2.4 的任何人

If you are using Grails 2.4 and above, use grails.util.Holdersinstead of org.codehaus.groovy.grails.commons.ConfigurationHolder.

如果您使用的是 Grails 2.4 及更高版本，请使用grails.util.Holders代替org.codehaus.groovy.grails.commons.ConfigurationHolder。

Read the doc heresection 'Static Holder'

在此处阅读文档部分“静态支架”

Classes The following deprecated classes have been removed from Grails 2.4.x:

org.codehaus.groovy.grails.commons.ApplicationHolder org.codehaus.groovy.grails.commons.ConfigurationHolder org.codehaus.groovy.grails.plugins.PluginManagerHolder org.codehaus.groovy.grails.web.context.ServletContextHolder org.codehaus.groovy.grails.compiler.support.GrailsResourceLoaderHolder If you or any plugins you have installed are using these classes you will get a compilation error. The problem can be rectified by updating to new plugins and using grails.util.Holders instead.

类 以下已弃用的类已从 Grails 2.4.x 中删除：

org.codehaus.groovy.grails.commons.ApplicationHolder org.codehaus.groovy.grails.commons.ConfigurationHolder org.codehaus.groovy.grails.plugins.PluginManagerHolder org.codehaus.groovy.grails.web.context.ServletContextHolder org.codehaus。 groovy.grails.compiler.support.GrailsResourceLoaderHolder 如果您或您安装的任何插件正在使用这些类，您将收到编译错误。可以通过更新到新插件并改用 grails.util.Holders 来纠正该问题。

回答by Jim Norman

If "Refresh Dependencies" has done all it can for you (as you indicate in your comment on the question), try disabling and re-enabling dependencies. You might try refreshing dependencies again afterward if the Acegi plugin still isn't recognized.

如果“刷新依赖项”已经为您完成了它所能做的一切（正如您在对问题的评论中所指出的那样），请尝试禁用和重新启用依赖项。如果仍然无法识别 Acegi 插件，您可以稍后再次尝试刷新依赖项。

回答by SShehab

there is another way solved me this issue when i moved my workspace from Windows OS to Ubuntu , go to

当我将工作区从 Windows 操作系统移到 Ubuntu 时，还有另一种方法解决了这个问题，请转到

yourWorkSpace -->yourGrailsProject-->setting folder --> org.grails.ide.eclipse.core.prefs, 

then check all the grails paths are correct or not , because in my case all were pointing to windows paths ..

然后检查所有 grails 路径是否正确，因为在我的情况下，所有路径都指向 Windows 路径..

Hope this solve.

希望这能解决。

回答by nshweta

I faced a similar issue: "Unable to resolve class GrailsTestCase". I checked Grails Tools of my project and observed Dependency Management was already enabled (IDE - GGTS). I just disabled Dependency Management, refreshed and enabled it again. This solved the issue for me.

我遇到了类似的问题：“无法解析 GrailsTestCase 类”。我检查了我的项目的 Grails 工具并观察到依赖管理已经启用（IDE - GGTS）。我刚刚禁用了依赖管理，刷新并再次启用它。这为我解决了这个问题。