Question

当我右键单击我想要包含的其中一个罐子时，构建路径选项不可用。谁知道为什么？谢谢！我正在使用的Eclipse版本是
Eclipse SDK 版本：3.7.1 构建ID：M20110909-1335
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Answer 1

右键单击项目并选择属性。 2.项目方面 - ＆gt; java - ＆gt;应用

Answer 2

右键单击项目，选择“属性”。在“Java Build path”中，转到“Libraries”选项卡，然后单击“add JARs”以在Java项目的构建路径中包含jar工作区。

Answer 3

确保你拥有以下所有， 1）设置文件夹 2）.classpath 3）.project 只需复制并粘贴.project文件，清理并构建它，

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>XXXX</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
        <buildCommand>
            <name>org.eclipse.jdt.core.javabuilder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>org.eclipse.jdt.core.javanature</nature>
    </natures>
</projectDescription>

Answer 4

在工具栏菜单中，点击“Window-＆gt; Show View-＆gt; Package Explorer。

这应解决问题。

Answer 5

转到项目工作区=＆gt;在项目根文件夹中。您将看到.project文件打开并替换它。

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>Test</name>
    <comment></comment>
    <projects>
        </projects>
    <buildSpec>
        <buildCommand>
            <name>org.eclipse.jdt.core.javabuilder</name>
            <arguments>
            </arguments>
        </buildCommand>
        <buildCommand>
            <name>org.maven.ide.eclipse.maven2Builder</name>
            <arguments>
            </arguments>
        </buildCommand>
        <buildCommand>
            <name>org.eclipse.m2e.core.maven2Builder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>org.maven.ide.eclipse.maven2Nature</nature>
        <nature>org.eclipse.jdt.core.javanature</nature>
        <nature>org.eclipse.m2e.core.maven2Nature</nature>
    </natures>
</projectDescription>

Answer 6

不知道原因。但这对我有用，所以张贴它。

右键点击该项目 - ＆gt; ＆＃39;属性＆＃39; - ＆GT; ＆＃39; Java Build Path＆＃39;

DateTime

Answer 7

If you are using an osgi run configuration, Run -> Run Configurations... Select you laucher and click on the Bundles tab. Filter with org.eclipse.swt and make sure that the org.eclipse.swt and org.eclipse.swt.[arch].[version].jar are checked.

This drove me nuts until I did this simple thing. If you validate bundles without having checked these you'll get a "No Problems" dialog but you'll get this error at run time

Eclipse Build Path不可用

7 个答案: