var pubkeyString = accountMeta.pubkey.toString();类型错误：无法读取未定义的属性（读取“toString”）

Question

尝试对压缩的 NFT 进行部分签名，console.log 记录所有正在使用的参数，这样就不是问题了。

const addNFTToTree = async (keypair, owner, metadata, collection) => {
  owner = new PublicKey(owner);

  let treeAddress = keypair.publicKey;

  collection = {
    collectionAuthority: new PublicKey(collection.collectionAuthority),
    collectionMint: new PublicKey(collection.collectionMint),
    collectionMetadata: new PublicKey(collection.collectionMetadata),
    editionAccount: new PublicKey(collection.editionAccount),
  };

  const [treeAuthority, _bump] = PublicKey.findProgramAddressSync(
    [treeAddress.toBuffer()],
    BUBBLEGUM_PROGRAM_ID
  );

  const [bubblegumSigner, __] = PublicKey.findProgramAddressSync(
    [Buffer.from("collection_cpi", "utf8")],
    BUBBLEGUM_PROGRAM_ID
  );

  metadata = {
    ...metadata,
    tokenProgramVersion: TokenProgramVersion.Original,
    tokenStandard: TokenStandard.NonFungible,
  };

  const compressedMintIx = createMintToCollectionV1Instruction(
    {
      payer: wallet.publicKey,
      merkleTree: treeAddress,
      treeAuthority: treeAuthority,
      treeDelegate: wallet.publicKey,

      leafOwner: owner,
      leafDelegate: owner,

      collectionAuthority: collection.collectionAuthority,
      collectionAuthorityRecordPda: BUBBLEGUM_PROGRAM_ID,
      collectionMint: collection.collectionMint,
      collectionMetadata: collection.collectionMetadata,
      collectionEdition: collection.editionAccount,

      compressionProgram: SPL_ACCOUNT_COMPRESSION_PROGRAM_ID,
      logWrapper: SPL_NOOP_PROGRAM_ID,
      bubblegumSigner: bubblegumSigner,
      tokenMetadataProgram: TOKEN_METADATA_PROGRAM_ID,
    },
    {
      metadataArgs: Object.assign(metadata, {
        collection: {
          key: collection.collectionMint,
          verified: false,
        },
      }),
    }
  );

  const tx = new Transaction();
  tx.add(compressedMintIx);
  tx.feePayer = wallet.publicKey;
  tx.recentBlockhash = (await connection.getRecentBlockhash()).blockhash;
  tx.partialSign(wallet);

  console.log(
    tx.serialize({
      requireAllSignatures: false,
    })
  );
};

我尝试将问题追溯到accountsMeta数组，

将最后一个帐户设为空

}
{
  pubkey: PublicKey [PublicKey(Buzo3LR2UMk8oFkcCMPHG3vZfUhw8qNPNnbvctANNxF9)] {
    _bn: <BN: a2286b42f74bcb2374911800ea2fc5cf4cc1ad72ec240e644637443eb0d00368>
  },
  isWritable: true,
  isSigner: false
}
{ pubkey: undefined, isWritable: false, isSigner: false }

钱包是费用支付者，想要对其进行部分签名并发回给用户签署tx，用户是集合所有者，

Answer 1

你是否找到了解决方案，即使我得到相同的错误，相同的 toString for null 也会给出错误，即使我检查类似的 pubkey？.toString() 方法也在程序的所有剩余行中给出错误:(