如何去掉引用js报错的红叉

代码

    <?xml version="1.0" encoding="UTF-8"?>  
    <projectDescription>  
        <name>bswz</name>  
        <comment></comment>  
        <projects>  
        </projects>  
        <buildSpec>  
            <!--<buildCommand>  
                <name>org.eclipse.wst.jsdt.core.javascriptValidator</name>  
                <arguments>  
                </arguments>  
            </buildCommand>
            -->  
            <buildCommand>  
                <name>org.eclipse.jdt.core.javabuilder</name>  
                <arguments>  
                </arguments>  
            </buildCommand>  
            <buildCommand>  
                <name>org.eclipse.wst.common.project.facet.core.builder</name>  
                <arguments>  
                </arguments>  
            </buildCommand>  
            <buildCommand>  
                <name>org.eclipse.wst.validation.validationbuilder</name>  
                <arguments>  
                </arguments>  
            </buildCommand>  
        </buildSpec>  
        <natures>  
            <nature>org.eclipse.jem.workbench.JavaEMFNature</nature>  
            <nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>  
            <nature>org.eclipse.wst.common.project.facet.core.nature</nature>  
            <nature>org.eclipse.jdt.core.javanature</nature>  
            <!--<nature>org.eclipse.wst.jsdt.core.jsNature</nature>-->  
        </natures>  
    </projectDescription>