错误：new BigNumber（）不是数字：[object Object]

Question

获取BigNumber错误..尝试了几乎所有内容

这是web3js函数调用

creditPoints: function() {
var self = this;
alert("Credit Coins");

this.setStatus("Initiating transaction... (please wait)");
var meta;
MetaCoin.deployed().then(function(instance) {
  meta = instance;
  //alert("credit Points");
  alert(account);
  return meta.creditCoin( account, {from: account,gas: 300000});
}).then(function() {
  console.log("Transaction complete");
  self.setStatus("Transaction complete!");
 // self.refreshBalance();
}).catch(function(e) {
  console.log(e);
  self.setStatus("Error sending coin; see log.");
});
},

这是合约中的合约函数

 function creditCoin(address receiver) returns(bool sufficient) {
    uint amount;
    amount=100;
    if (balances[0xE208914454c16c7a2CD561071519bea9207Dda59] < amount) return false;
    balances[0xE208914454c16c7a2CD561071519bea9207Dda59] -= amount;
    balances[receiver] += amount;
    Transfer(0xE208914454c16c7a2CD561071519bea9207Dda59, receiver, amount);
    return true;
}

调用上面的函数

时出现BigNumber错误

Error: new BigNumber() not a number: [object Object]
at raise (app.js:17546)
at app.js:17534
at new BigNumber (app.js:16561)
at new BigNumber (app.js:16571)
at toBigNumber (app.js:2719)
at Object.toTwosComplement (app.js:2730)
at SolidityTypeUInt.formatInputInt [as _inputFormatter] (app.js:3888)
at SolidityTypeUInt.SolidityType.encode (app.js:5111)
at app.js:21124
at Array.map (<anonymous>)