[54] srcDir error layout folder

I'm trying to use the srcDir with express. When I access the page, this red message appears:

Vue.js error

Error: Cannot find module "C:\Users\DNPO\projects\church-nuxt\layouts\error.vue"
    at webpackMissingModule (__vue_ssr_bundle__:435:78)
    at Object.module.exports.Object.defineProperty.value (__vue_ssr_bundle__:435:213)
    at __webpack_require__ (__vue_ssr_bundle__:21:30)
    at Object.module.exports.__vue_styles__ (__vue_ssr_bundle__:734:19)
    at __webpack_require__ (__vue_ssr_bundle__:21:30)
    at Object.module.exports.exports.b (__vue_ssr_bundle__:92:79)
    at __webpack_require__ (__vue_ssr_bundle__:21:30)
    at Object.<anonymous> (__vue_ssr_bundle__:1034:65)
    at __webpack_require__ (__vue_ssr_bundle__:21:30)
    at __vue_ssr_bundle__:65:18

my nuxt.config.js

const { resolve } = require('path');

module.exports = {
  srcDir: resolve('./app'),
  head: {
    title: 'starter',
    meta: [
      { charset: 'utf-8' },
      { name: 'viewport', content: 'width=device-width, initial-scale=1' },
      { hid: 'description', content: "Nuxt.js project" }
    ],
    link: [
      { rel: 'icon', type: 'image/x-icon', href: 'favicon.ico' }
    ]
  },
  css: ['~assets/css/main.css'],
  loading: { color: '#3B8070' }
}

server/index.js

const express = require('express');
const Nuxt = require('nuxt');
const nuxtConfig = require('../app/nuxt.config');

const app = express();

console.log(nuxtConfig.srcDir);

app.get('/api', (req, res) => {
  res.json('Ok');
});

const nuxt = new Nuxt(nuxtConfig);
nuxt.build();
app.use(nuxt.render);

app.listen(3000, () => {
  console.log('now listening port 3000');
});

Folder structure: