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

问题

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

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).

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

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

I got a difference between my .settings / org.eclipse.jdt.core.prefs in 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

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

回答1:

First
Go to project Properties > Java Build Path > Select Source Tab > Remove all sources by selecting Remove button
Then restart Eclipse.
Next
Go to project Properties > Java Build Path > Select Source Tab > Add Folder button > Select gen and src
Restart Eclipse

来源：https://stackoverflow.com/questions/26755674/importing-project-build-path-contains-duplicate-entry-src-for-project

标签

android

eclipse