Lightning Out嵌入复杂Salesforce Screen Flow时出现组件连接错误求助

API 探路者

2026-8-20

Lightning Out嵌入复杂Salesforce Screen Flow时字段加载失败问题

基础的2屏Screen Flow通过Lightning Out嵌入外部Web应用可正常运行，但加载复杂流程时出现以下错误，仅能看到流程按钮，无法显示流程内字段：

Screen Flow Error:

This page has an error. You might just need to refresh it. Error during LWC component connect phase: [Error in $A.getCallback() [Cannot read properties of null (reading 'getReference')]] Failing descriptor: {markup://flowruntime:auraField}

相关代码

Aura Component

auraScreenFlow.cmp

<aura:component>
    <aura:handler name="init" value="{!this}" action="{!c.init}" />
    <lightning:flow aura:id="flowScreen" />
</aura:component>

auraScreenFlowController.js

({
    init : function(component) {
        var flow = component.find("flowScreen");
        flow.startFlow("flow_api_name");
    }
})

Lightning Application

auraScreenFlowApplication.app

<aura:application access="GLOBAL" extends="ltng:outApp" implements="ltng:allowGuestAccess">
    <aura:dependency resource="c:auraScreenFlow" />
</aura:application>

Web Application HTML

index.html

<div id="flow"></div>

<script src="https://myorg.lightning.force.com/lightning/lightning.out.js"></script>
<script>
    $Lightning.use('c:auraScreenFlowApplication',
            function () {
                $Lightning.createComponent(
                    'c:auraScreenFlow',
                    {},
                    "flow",
                    function (cmp) {
                        console.log('Created', { cmp });
                    }
                );
            },
            'https://myorg.lightning.force.com/',
            'access-token'
        );
</script>