Error: GENSYNC_EXPECTED_START

[laduniestu]

Node.js v20.18.0

"jiti": "^2.4.2",
"next": "15.1.4",
"@t3-oss/env-nextjs": "^0.11.1",

src/env/server.ts

import { z } from "zod";

export const envServer = createEnv({
  server: {
    PLUNK_API_KEY: z.string().url(),
    EMAIL_TO: z.string().min(1),
  },
  experimental__runtimeEnv: process.env,
});

next.config.ts

import { fileURLToPath } from "url";
import createJiti from "jiti";
const jiti = createJiti(fileURLToPath(import.meta.url));

async function loadEnv() {
  await jiti.import("./src/env/server.ts");
}

loadEnv().catch(e => {
  console.error(e);
  process.exit(1);
});

const nextConfig: NextConfig = {
  output: "standalone",
};

export default nextConfig;

Error :

Error: GENSYNC_EXPECTED_START: Got unexpected yielded value in gensync generator: undefined. Did you perhaps mean to use 'yield*' instead of 'yield'? 
/src/env/server.ts:0:0
    at <unknown> (src/env/server.ts:0:0)

[raikusy]

Same issue! found any solution?

[laduniestu]

Same issue! found any solution?

not yet

[JulianKingman]

I was just making a repro of another issue when I encountered this one instead :)

[JulianKingman]

Reverting to a lower jiti version solved it:

"jiti": "^1.21.7",