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Maven安装有效，但是Intellij的构建不起作用

[英]Maven install works but Intellij's build does not

原文 2018-04-16 09:04:43 7 1 java/ maven/ intellij-idea

I have the following problem with a multi module maven project: 我在多模块Maven项目中遇到以下问题：

The project was initially created in Eclipse and can be compiled and run there. 该项目最初是在Eclipse中创建的，可以在其中编译和运行。 It also can be built with mvn install . 也可以使用mvn install构建。

Now when I import the project into Intellij using the following import options the parent pom.xml is recognized and the project and its modules are imported. 现在，当我使用以下导入选项将项目导入Intellij时，将识别父pom.xml并导入项目及其模块。

Everything looks fine, but when I try to compile it, one class, that has a class from another module as a dependency, cannot be found. 一切看起来都很好，但是当我尝试编译它时，找不到一个类，该类具有来自另一个模块的类作为依赖项。

I tried a lot of solutions and the ONLY one that worked for me is the outdated maven idea plugin mvn idea:idea as suggested in this thread. 我尝试了很多解决方案，但对我有用的唯一解决方案是该线程中建议的过时的maven idea插件mvn idea:idea 。 Now every time something in any of the projects poms changes, I have to rerun mvn idea:idea and hope that it works - otherwise I have to import the whole project again. 现在，每次项目poms中的某些内容发生更改时，我都必须重新运行mvn idea:idea并希望它能起作用-否则，我必须再次导入整个项目。

What am I doing wrong in the import process? 导入过程中我在做什么错？ Why does mvn install on the command line work, but building the project in Intellij does not? 为什么在命令行上mvn install工作，但是在Intellij中构建项目却不能呢？

1 个解决方案

Try to clear the Intellj Cache once by going to File -> Invalidate Caches/Restart click it. 尝试通过转到“文件”->“使缓存无效/重新启动”来清除它，以一次清除Intellj缓存。 You will get an options, In there select Invalidate and Restart. 您将获得一个选项，在其中选择“失效并重新启动”。

Re-import the maven project and compile again it should work. 重新导入Maven项目，然后再次编译即可。