Xdn run Spartacus @xdn/angular/router/createAngularPlugin not found

on Spartacus, after Successful xdn use latest , xdn dev errors with

ERROR in ./routes.js 7:28-78
Module not found: Error: Can't resolve '@xdn/angular/router/createAngularPlugin' in '/Users/howard.ross/Repos/commerce/js-storefront/Store'

webpack compiled with 1 error and 12 warnings
error Error: Cannot find module '@xdn/angular/router/createAngularPlugin'
    at webpackMissingModule (/Users/howard.ross/Repos/commerce/js-storefront/Store/.xdn/lambda/routes.js:6862:98)
    at Object../routes.js (/Users/howard.ross/Repos/commerce/js-storefront/Store/.xdn/lambda/routes.js:6862:212)
    at __webpack_require__ (/Users/howard.ross/Repos/commerce/js-storefront/Store/.xdn/lambda/routes.js:17984:42)
    at /Users/howard.ross/Repos/commerce/js-storefront/Store/.xdn/lambda/routes.js:18048:37
    at /Users/howard.ross/Repos/commerce/js-storefront/Store/.xdn/lambda/routes.js:18051:12
    at webpackUniversalModuleDefinition (/Users/howard.ross/Repos/commerce/js-storefront/Store/.xdn/lambda/routes.js:3:20)
    at Object.<anonymous> (/Users/howard.ross/Repos/commerce/js-storefront/Store/.xdn/lambda/routes.js:10:3)
    at Module._compile (internal/modules/cjs/loader.js:999:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32) {
  code: 'MODULE_NOT_FOUND'
}

yarn add @xdn/angular does not resolve it

This was due to an untracked routes.js in addition to the routes.ts