eclipse 导入项目 - 构建路径包含重复条目：项目的“src”

Importing project - build path contains duplicate entry: 'src' for project

提问by Theo Jouret

i'm importing a project into workspace, i get the following error:

我正在将项目导入工作区，出现以下错误：

build path contains duplicate entry: 'src' for project 'myproject'

• .classpath seems to be alright:

  <?xml version="1.0" encoding="UTF-8"?>
  <classpath>
      <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
      <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>
      <classpathentry excluding="..." kind="src" path="src"/>
      <classpathentry kind="src" path="gen"/>
      <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
      <classpathentry kind="output" path="bin/classes"/>
  </classpath>
  

• My build target is checked in properties->android.

• In my properties->java build path->source, i got both of my src and gen folders

• I imported my project with File->import

• the error appears in a pop-up while importing the project. I click "ok", pop-up disappears, eclipse build the project, and then the project works fine (no errors, maybe eclipse solved the problem by itself).

• .classpath 似乎没问题：

  <?xml version="1.0" encoding="UTF-8"?>
  <classpath>
      <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
      <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>
      <classpathentry excluding="..." kind="src" path="src"/>
      <classpathentry kind="src" path="gen"/>
      <classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
      <classpathentry kind="output" path="bin/classes"/>
  </classpath>
  

• 我的构建目标在属性-> android 中检查。

• 在我的属性->java 构建路径->源中，我得到了我的 src 和 gen 文件夹

• 我使用 File->import 导入了我的项目

• 导入项目时，错误出现在弹出窗口中。我单击“确定”，弹出窗口消失，eclipse 构建项目，然后项目工作正常（没有错误，也许 eclipse 自己解决了问题）。

i could just ignore the error and work on my project, but i'd like to understand what's wrong with the initial project i'm importing

我可以忽略错误并处理我的项目，但我想了解我正在导入的初始项目有什么问题

---

---

• .classpath, .project, AndroidManifest.xml, project.propertiesare exactly the same between initial project and the one imported into workspace

• I got a difference between my .settings / org.eclipse.jdt.core.prefsin my initial project and the one imported inside my workspace:

  initial project:

  eclipse.preferences.version=1
  org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
  org.eclipse.jdt.core.compiler.compliance=1.6
  org.eclipse.jdt.core.compiler.source=1.6
  

  once imported, inside workspace

  eclipse.preferences.version=1
  org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
  org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
  org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
  org.eclipse.jdt.core.compiler.compliance=1.6
  org.eclipse.jdt.core.compiler.debug.lineNumber=generate
  org.eclipse.jdt.core.compiler.debug.localVariable=generate
  org.eclipse.jdt.core.compiler.debug.sourceFile=generate
  org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
  org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
  org.eclipse.jdt.core.compiler.source=1.6
  

• .classpath, .project, AndroidManifest.xml, project.properties在初始项目和导入工作区的项目之间完全相同

• 我的初始项目中的.settings / org.eclipse.jdt.core.prefs与导入到我的工作区中的不同：

  初始项目：

  eclipse.preferences.version=1
  org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
  org.eclipse.jdt.core.compiler.compliance=1.6
  org.eclipse.jdt.core.compiler.source=1.6
  

  导入后，在工作区内

  eclipse.preferences.version=1
  org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
  org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
  org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
  org.eclipse.jdt.core.compiler.compliance=1.6
  org.eclipse.jdt.core.compiler.debug.lineNumber=generate
  org.eclipse.jdt.core.compiler.debug.localVariable=generate
  org.eclipse.jdt.core.compiler.debug.sourceFile=generate
  org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
  org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
  org.eclipse.jdt.core.compiler.source=1.6
  

however i tried copy paste the final version of this file in my initial project, then import it again; i still get the error.

但是我尝试将这个文件的最终版本复制粘贴到我的初始项目中，然后再次导入；我仍然收到错误。

回答by vovahost

First
Go to project Properties> Java Build Path> Select SourceTab > Remove all sources by selecting Removebutton
Then restart Eclipse.
Next
Go to project Properties> Java Build Path> Select SourceTab > Add Folderbutton > Select genand src
Restart Eclipse

首先
转到项目属性> Java 构建路径> 选择源选项卡> 通过选择删除按钮删除所有源
然后重新启动 Eclipse。
下一步
转到项目属性> Java 构建路径> 选择源选项卡 >添加文件夹按钮 > 选择gen和src
重新启动 Eclipse