构建路径指定执行环境J2SE-1.5。工作区中没有安装与此环境严格兼容的JRE

Question

我使用OS X Yosemite(10.10.2)，并且有一些我想在Eclipse中构建的java项目。有些项目是旧的，它们在Java5、6和7中。最初，我安装了JDK7和Eclipse Luna。然后我读了这个和这个线程如何在Mac上安装特定的JDK。我使用这个脚本安装JDK，并更改了这两行，以便与Yosemite兼容。

/usr/libexec/PlistBuddy -c "Set :JavaVM:JVMMaximumFrameworkVersion 14.*.*" ./Resources/Info.plist
/usr/libexec/PlistBuddy -c "Set :JavaVM:JVMMaximumSystemVersion "$osx_version".*" ./Resources/Info.plist

由

/usr/libexec/PlistBuddy -c "Delete :JavaVM:JVMMaximumFrameworkVersion" ./Resources/Info.plist
/usr/libexec/PlistBuddy -c "Delete :JavaVM:JVMMaximumSystemVersion" ./Resources/Info.plist

下面是我的/system/library/frameworks/javavm.framework/versions目录的内容

lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.4 -> CurrentJDK
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.4.2 -> CurrentJDK
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.5 -> CurrentJDK
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.5.0 -> CurrentJDK
drwxr-xr-x  9 root  wheel  306  8 apr 14:32 1.5.0_30
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.6 -> CurrentJDK
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.6.0 -> CurrentJDK
drwxr-xr-x  7 root  wheel  238  8 apr 14:36 A
lrwxr-xr-x  1 root  wheel    1  8 apr 14:36 Current -> A
lrwxr-xr-x  1 root  wheel   59  8 apr 14:36 CurrentJDK -> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents

AND:bin andr-work$ java -version
java version "1.7.0_75"
Java(TM) SE Runtime Environment (build 1.7.0_75-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.75-b04, mixed mode)

但我不知道有谁能在优胜美地使用这些java版本。

我尝试在Eclipse首选项中更改执行环境

但这无济于事。

    <?xml version="1.0"?>
<project name="build" default="jar">
    <description>
            A build script
    </description>

    <property name="ant.build.javac.source" value="1.5"/>
    <property name="ant.build.javac.target" value="1.5"/>

    <property name="dist.jar" value="ci-ons.jar"></property>
    <property name="dist.folder" value="dist"></property>
    <property name="src.folder" value="src"/>
    <property name="classes.folder" value="bin"/>

</project>

lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.4 -> CurrentJDK
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.4.2 -> CurrentJDK
lrwxr-xr-x  1 root  wheel   10  9 apr 11:01 1.5 -> ./1.5.0_30
lrwxr-xr-x  1 root  wheel   10  9 apr 11:01 1.5.0 -> ./1.5.0_30
drwxr-xr-x  9 root  wheel  306  9 apr 11:01 1.5.0_30
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.6 -> CurrentJDK
lrwxr-xr-x  1 root  wheel   10  8 apr 14:36 1.6.0 -> CurrentJDK
drwxr-xr-x  7 root  wheel  238  8 apr 14:36 A
lrwxr-xr-x  1 root  wheel    1  8 apr 14:36 Current -> A

Build path specifies execution environment J2SE-1.5. There are no JREs installed in the workspace that are strictly compatible with this environment.

我决定开新的线程

Answer 1

我只需右键单击Project Explorer中的“Java System Library”并选择“Properties”就解决了我的问题。在“执行环境”中刚刚选择了正确的Java版本。