结构：在“args”上失败::结构：在“dest”上失败

如何解决结构：在“args”上失败::结构：在“dest”上失败

在尝试 polkadotjs 库时，它在传输过程中出错。

这是我的代码：

const { ApiPromise,WsProvider,Keyring } = require("@polkadot/api")

;(async () => {
  const wsprovider = new WsProvider("ws://127.0.0.1:9944")
  const api = await ApiPromise.create({
    provider: wsprovider,types: {
      DepartmentDetails: {
        name: "Text",location: "Text",details: "Text",departmentid: "u128",},})
  const keyring = new Keyring({ type: "sr25519" })
  const alice = keyring.addFromUri("//Alice")
  const BOB = keyring.addFromUri("//Bob")
  try {
    const txHash = await api.tx.balances.transfer(BOB,12345).signAndSend(alice)
    console.log(`Submitted with hash ${txHash}`)
  } catch (err) {
    console.log(err)
  }
 
  process.exit()
})()

它给出了错误：
错误：createType(Call):: 结构：'args' 失败:: 结构：'dest' 失败:: 解码 [object Object]：value.substr 不是函数