Updating tanstack router causes crash

Update 1.120.5 -> 1.121.2

I updated the deprecated vite plugin

import { TanStackRouterVite } from "@tanstack/router-plugin/vite";

import { TanStackRouterVite } from "@tanstack/router-plugin/vite";

import { tanstackRouter } from "@tanstack/router-plugin/vite";

import { tanstackRouter } from "@tanstack/router-plugin/vite";

plugin usage:

plugins: [
      tanstackRouter({
        target: "react",
        routeFilePrefix: "~",
        autoCodeSplitting: true,
        routeTreeFileFooter: [
          "export type RouteId = Exclude<keyof FileRoutesById, '__root__'>;",
          "export type Route = FileRoutesById[RouteId];",
          "export type RouteTree = typeof routeTree;",
        ],
      }),
      react(),
      reactScan(),
      //...
]

plugins: [
      tanstackRouter({
        target: "react",
        routeFilePrefix: "~",
        autoCodeSplitting: true,
        routeTreeFileFooter: [
          "export type RouteId = Exclude<keyof FileRoutesById, '__root__'>;",
          "export type Route = FileRoutesById[RouteId];",
          "export type RouteTree = typeof routeTree;",
        ],
      }),
      react(),
      reactScan(),
      //...
]

But both cause crashes on startup:

error when starting dev server:
TypeError: Cannot read properties of undefined (reading 'config')
    at PluginContext.buildStart

error when starting dev server:
TypeError: Cannot read properties of undefined (reading 'config')
    at PluginContext.buildStart

TanStack•9mo ago•

26 replies

brilliant-lime

Updating tanstack router causes crash

Update 1.120.5 -> 1.121.2

I updated the deprecated vite plugin

import { TanStackRouterVite } from "@tanstack/router-plugin/vite";

import { TanStackRouterVite } from "@tanstack/router-plugin/vite";

import { tanstackRouter } from "@tanstack/router-plugin/vite";

import { tanstackRouter } from "@tanstack/router-plugin/vite";

plugin usage:

plugins: [
      tanstackRouter({
        target: "react",
        routeFilePrefix: "~",
        autoCodeSplitting: true,
        routeTreeFileFooter: [
          "export type RouteId = Exclude<keyof FileRoutesById, '__root__'>;",
          "export type Route = FileRoutesById[RouteId];",
          "export type RouteTree = typeof routeTree;",
        ],
      }),
      react(),
      reactScan(),
      //...
]

plugins: [
      tanstackRouter({
        target: "react",
        routeFilePrefix: "~",
        autoCodeSplitting: true,
        routeTreeFileFooter: [
          "export type RouteId = Exclude<keyof FileRoutesById, '__root__'>;",
          "export type Route = FileRoutesById[RouteId];",
          "export type RouteTree = typeof routeTree;",
        ],
      }),
      react(),
      reactScan(),
      //...
]

But both cause crashes on startup:

error when starting dev server:
TypeError: Cannot read properties of undefined (reading 'config')
    at PluginContext.buildStart

error when starting dev server:
TypeError: Cannot read properties of undefined (reading 'config')
    at PluginContext.buildStart

Updating tanstack router causes crash

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