Uncaught (in promise) TypeError: Cannot read property 'inputProperties' of undefined

I used elsa in version 2.4.1.2
` builder.StartWith((t) =>
{
List applications = t.GetInput>();

});`
In the front-end https://localhost:44363/workflow-registry/RegistCenterApiFlow open my process to view, and an error is reported
`p-51232d33.entry.js:1 Uncaught (in promise) TypeError: Cannot read property 'inputProperties' of undefined
at p-51232d33.entry.js:1
at p-a3b5bd35.js:1
at p-a3b5bd35.js:1
at un (p-a3b5bd35.js:1)
at p-a3b5bd35.js:1
at Ot (p-a3b5bd35.js:1)
at Object._t [as map] (p-a3b5bd35.js:1)
at mapActivityModel (p-51232d33.entry.js:1)
at Array.map ()
at c.mapWorkflowModel (p-51232d33.entry.js:1)`