Not all sent parameters were read

[iceAnson]

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Issue subject

Briefly describe the issue here.

pparams = {
    'symbol': COIN,
    'side': 'BUY',
    'type': 'TAKE_PROFIT_LIMIT',#追踪止盈限价买单
    'timeInForce': 'GTC',
    'quantity':BUY_COUNT,
    'price':result,
    'stopPrice':result, #到此价格触发追踪
    'trailingDelta:':250 #2.5% # 从追踪开始，当从最低价上涨2.5%的情况下，以limit价格挂单
}
print("doBuy stopPrice价格：%f"%result)
try:
    response = client.new_order(**params)
    print("doBuy 返回："+response)
    return "xx"
except ClientError as error:
    logging.error(
    "Found error. status: {}, error code: {}, error message: {}".format(
        error.status_code, error.error_code, error.error_message
    )
)

I GOT error as below:

ERROR:root:Found error. status: 400, error code: -1104, error message: Not all sent parameters were read; read '9' parameter(s) but was sent '10'. 下单失败，退出

Environment

Provide any relevant information about your setup, such as:

• Version of binance-connector-python
• Python version :3.1.0
• Operating system: mac