---
id: "T:cAlgo.API.MarketDataLoadException"
kind: "class"
namespace: "cAlgo.API"
url: "https://help.ctrader.com/ctrader-algo/references/MarketData/MarketDataLoadException/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# MarketDataLoadException (class)

Represents errors that occur during loading market data (Bars/Ticks)

Environments: Desktop supported · CLI supported · Cloud supported.

## Definition

```csharp
public sealed class MarketDataLoadException : Exception
```

## Examples

C#:

```csharp
try
{
    var bars = MarketData.GetBars(TimeFrame.Hour, "EURUSD");
    Print("Loaded {0} bars", bars.Count);
}
catch (MarketDataLoadException exception)
{
    Print("Market data loading failed: {0}", exception.Message);
}
```

Python:

```python
try:
    bars = api.MarketData.GetBars(TimeFrame.Hour, "EURUSD")
    api.Print(f"Loaded {bars.Count} bars")
except MarketDataLoadException as exception:
    api.Print(f"Market data loading failed: {exception.Message}")
```