设置Intellij IDEA进行插件开发 - 找不到符号PathInfo

Question

按照setting_up_environment'IntelliJ Platform SDK DevGuide'和checkout_and_build_community中的说明操作 ：

• 安装了IDE
• 已安装JDK 8
• 查看了GIT的SDK源代码
• 按照这两页中的其他说明进行操作

以上所有内容都是在Ubuntu 15和Windows 8.1 vm上完成的。 当我尝试构建项目时，我收到大量关于弃用类和两个错误的警告：

C:\IdeaProjects\community\plugins\cvs\cvs-core\src\com\intellij\cvsSupport2\config\ProxySettings.java
    Warning:Warning:line (19)java: com.intellij.openapi.util.DefaultJDOMExternalizer in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (21)java: com.intellij.openapi.util.JDOMExternalizable in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (25)java: com.intellij.openapi.util.JDOMExternalizable in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (72)java: com.intellij.openapi.util.DefaultJDOMExternalizer in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (77)java: com.intellij.openapi.util.DefaultJDOMExternalizer in com.intellij.openapi.util has been deprecated
C:\IdeaProjects\community\plugins\cvs\cvs-core\src\com\intellij\cvsSupport2\config\ExtConfiguration.java
    Warning:Warning:line (20)java: com.intellij.openapi.util.DefaultJDOMExternalizer in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (22)java: com.intellij.openapi.util.JDOMExternalizable in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (29)java: com.intellij.openapi.util.JDOMExternalizable in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (39)java: com.intellij.openapi.util.DefaultJDOMExternalizer in com.intellij.openapi.util has been deprecated
    Warning:Warning:line (44)java: com.intellij.openapi.util.DefaultJDOMExternalizer in com.intellij.openapi.util has been deprecated
C:\IdeaProjects\community\platform\built-in-server-api\src\org\jetbrains\builtInWebServer\WebServerRootsProvider.java
    Error:Error:line (13)java: cannot find symbol
  symbol:   class PathInfo
  location: class org.jetbrains.builtInWebServer.WebServerRootsProvider
    Error:Error:line (16)java: cannot find symbol
  symbol:   class PathInfo
  location: class org.jetbrains.builtInWebServer.WebServerRootsProvider

我已经google了，但未找到任何与PathInfo，builtInWebServer或WebServerRootsProvider相关的内容。 可能是因为谷歌自动假设我的意思是“路径信息”并默默地混合这些结果。

我怀疑它可能是我没有用IDEA下载的东西，比如J2EE或者一些Apache库，但几个小时之后，我已经准备好了。

回答一些评论：

1. 在项目中安装并配置Java。 如果Java完全丢失，它可能不会抱怨弃用
2. SDK被定义为'IDEA jdk'，因此它将按照说明自动运行

Answer 1

IDEA SDK部分用Kotlin编写，Kotlin是一种在Java虚拟机上运行的静态类型编程语言。

丢失的PathInfo类在PathInfo.kt（Kotlin文件）中定义。

选择文件| 设置| 插件并单击“安装JetBrains插件”。 选择Kotlin插件，错误就会消失。

Answer 2

可能是IntelliJ找不到Java的路径...在IntelliJ中设置JDK（已安装）的路径