okex error=start price not found: ETHUSDT

[yubing744]

Using the okex exchange to backtest the supertrend strategy, it prompts: 'start price not found' error

bbgo.yaml

persistence:
  redis:
    host: 127.0.0.1  # The IP address or the hostname to your Redis server, 127.0.0.1 if same as BBGO  
    port: 6379  # Port to Redis server, default 6379
    db: 0  # DB number to use. You can set to another DB to avoid conflict if other applications are using Redis too.

sessions:
  okex:
    exchange: okex
    envVarPrefix: okex
    margin: false
    isolatedMargin: false
    isolatedMarginSymbol: ETHUSDT

sync:
  # since is the date you want to start sync
  since: 2020-01-01

  # if you have multiple sessions defined, but you don't want to sync all sessions, you can define a list here
  sessions:
  - okex

  # optional, if you want to insert the trades and orders from the websocket stream
  # if you're running multiple bbgo instance, you should avoid setting this on
  userDataStream:
    # if you set this, all received trades will be written into the database
    trades: true
    # if you set this, all received filled orders will be written into the database
    filledOrders: true

  # symbols is the symbol you want to sync
  # If not defined, BBGO will try to guess your symbols by your existing account balances
  symbols:
  - ETHUSDT

backtest:
  sessions: [okex]
  # for testing max draw down (MDD) at 03-12
  # see here for more details
  # https://www.investopedia.com/terms/m/maximum-drawdown-mdd.asp
  startTime: "2022-01-01"
  endTime: "2022-12-31"
  symbols:
  - ETHUSDT
  accounts:
    okex:
      makerCommission: 10  # 0.15%
      takerCommission: 15  # 0.15%
      balances:
        BTC: 0.0
        USDT: 8.0

exchangeStrategies:
- on: okex
  supertrend:
    symbol: ETHUSDT

    # interval is how long do you want to update your order price and quantity
    interval: 1m

    # ATR window used by Supertrend
    window: 220
    # ATR Multiplier for calculating super trend prices, the higher, the stronger the trends are
    supertrendMultiplier: 10

    # leverage uses the account net value to calculate the order qty
    leverage: 1.0
    # quantity sets the fixed order qty, takes precedence over Leverage
    #quantity: 0.5

    # fastDEMAWindow and slowDEMAWindow are for filtering super trend noise
    fastDEMAWindow: 28
    slowDEMAWindow: 170

    # Use linear regression as trend confirmation
    linearRegression:
      interval: 1m
      window: 18

    # TP according to ATR multiple, 0 to disable this
    TakeProfitAtrMultiplier: 0

    # Set SL price to the low of the triggering Kline
    stopLossByTriggeringK: false

    # TP/SL by reversed supertrend signal
    stopByReversedSupertrend: false

    # TP/SL by reversed DEMA signal
    stopByReversedDema: false

    # TP/SL by reversed linear regression signal
    stopByReversedLinGre: false

    # Draw pnl
    drawGraph: true
    graphPNLPath: "./pnl.png"
    graphCumPNLPath: "./cumpnl.png"

    exits:
      # roiStopLoss is the stop loss percentage of the position ROI (currently the price change)
      - roiStopLoss:
          percentage: 4.6%
      - protectiveStopLoss:
          activationRatio: 3.5%
          stopLossRatio: 2.9%
          placeStopOrder: false
      - protectiveStopLoss:
          activationRatio: 11.1%
          stopLossRatio: 9.5%
          placeStopOrder: false
      - trailingStop:
          callbackRate: 1.1%
          #activationRatio: 20%
          minProfit: 19.5%
          interval: 1m
          side: both
          closePosition: 100%

command:

bbgo backtest -v --sync --config ./bbgo.yaml

output

[yubing744]

When debug mode is enabled, output:

[c9s]

looks like okex changed some API response? not quiet sure