Compile hello world error

[updategroup]

I make guid https://aiken-lang.org/example--hello-world
but compile error

source code:

import {
Blockfrost,
C,
Constr,
Data,
Lucid,
SpendingValidator,
TxHash,
fromHex,
toHex,
utf8ToHex,
} from "https://deno.land/x/lucid@0.8.3/mod.ts";
import * as cbor from "https://deno.land/x/cbor@v1.4.1/index.js";

const lucid = await Lucid.new(
new Blockfrost(
"https://cardano-preview.blockfrost.io/api/v0",
Deno.env.get("BLOCKFROST_API_KEY")
),
"Preview"
);

lucid.selectWalletFromPrivateKey(await Deno.readTextFile("./key.sk"));

const validator = await readValidator();

// --- Supporting functions

async function readValidator(): Promise {
const validator = JSON.parse(await Deno.readTextFile("plutus.json")).validators[0];
return {
type: "PlutusV2",
script: toHex(cbor.encode(fromHex(validator.compiledCode))),
};
}

const publicKeyHash = lucid.utils.getAddressDetails(
await lucid.wallet.address()
).paymentCredential?.hash;

const datum = Data.to(new Constr(0, [publicKeyHash]));

const txHash = await lock(1000000n, { into: validator, owner: datum });

await lucid.awaitTx(txHash);

console.log(1 tADA locked into the contract at: Tx ID: ${txHash} Datum: ${datum} );

// --- Supporting functions

async function lock(
lovelace: bigint,
{ into, owner }: { into: SpendingValidator; owner: string }
): Promise {
const contractAddress = lucid.utils.validatorToAddress(into);

const tx = await lucid
  .newTx()
  .payToContract(contractAddress, { inline: owner }, { lovelace })
  .complete();

const signedTx = await tx.sign().complete();

return signedTx.submit();

}

[KtorZ]

Did you set the BLOCKFROST_API_KEY to a valid API key?