bot crashes in backtest

firemyst
18 Feb 2025, 05:08

• There isn't one unless Spotware has a secret list
• you're probably doing something that the code, whether you know it or not, expects to have access to something on the chart, which it obviously doesn't since it's in non-visual mode.

kyosuke
18 Feb 2025, 08:37

RE: bot crashes in backtest

firemyst said: 

• There isn't one unless Spotware has a secret list
• you're probably doing something that the code, whether you know it or not, expects to have access to something on the chart, which it obviously doesn't since it's in non-visual mode.

• oh…and how do they expect developers to fix their code?
• actually no, i'm only reading an indicator, placing stop orders, moving SLs and TPs

the only other thing i noticed is that right before the crash i have an “Modifying position PID30 (SL: 1.07551, TP: 1.083) FAILED with error "InvalidStopLossTakeProfit"” error…but i have this error also a few other times a lot of time before the crash so I don't think that's the point

firemyst
18 Feb 2025, 23:52

RE: RE: bot crashes in backtest

kyosuke said: 

firemyst said: 

• There isn't one unless Spotware has a secret list
• you're probably doing something that the code, whether you know it or not, expects to have access to something on the chart, which it obviously doesn't since it's in non-visual mode.

• oh…and how do they expect developers to fix their code?
• actually no, i'm only reading an indicator, placing stop orders, moving SLs and TPs

the only other thing i noticed is that right before the crash i have an “Modifying position PID30 (SL: 1.07551, TP: 1.083) FAILED with error "InvalidStopLossTakeProfit"” error…but i have this error also a few other times a lot of time before the crash so I don't think that's the point

If you don't post any sample code that reproduces the problem, I don't know how you expect people to be able to help you further.

kyosuke
19 Feb 2025, 09:37

RE: RE: RE: bot crashes in backtest

firemyst said: 

kyosuke said: 

firemyst said: 

• There isn't one unless Spotware has a secret list
• you're probably doing something that the code, whether you know it or not, expects to have access to something on the chart, which it obviously doesn't since it's in non-visual mode.

• oh…and how do they expect developers to fix their code?
• actually no, i'm only reading an indicator, placing stop orders, moving SLs and TPs

the only other thing i noticed is that right before the crash i have an “Modifying position PID30 (SL: 1.07551, TP: 1.083) FAILED with error "InvalidStopLossTakeProfit"” error…but i have this error also a few other times a lot of time before the crash so I don't think that's the point

 

If you don't post any sample code that reproduces the problem, I don't know how you expect people to be able to help you further.

 

I expect getting help in translating that error code into a textual understandable error description, not for sure putting the source code of a program on a public forum…I don't think my concerns are strange, are they? :)

firemyst
19 Feb 2025, 10:07

RE: RE: RE: RE: bot crashes in backtest

kyosuke said: 

 

I expect getting help in translating that error code into a textual understandable error description, not for sure putting the source code of a program on a public forum…I don't think my concerns are strange, are they? :)

Well I wouldn't expect much help then, bceause you need to give a bit more for even Spotware to have something to investigate. 

And not asking for whole code - just sample code that reproduces the issue.

kyosuke
19 Feb 2025, 10:55

RE: RE: RE: RE: RE: bot crashes in backtest

firemyst said: 

kyosuke said: 

 

I expect getting help in translating that error code into a textual understandable error description, not for sure putting the source code of a program on a public forum…I don't think my concerns are strange, are they? :)

 

Well I wouldn't expect much help then, bceause you need to give a bit more for even Spotware to have something to investigate. 

And not asking for whole code - just sample code that reproduces the issue.

yep…I get the point…unfortunately as i said before the problem seems to came out right after modifying a stop loss with an invalid price…so the piece of code is “simply” this, nothing strange:

foreach (var pos in Positions.FindAll(_Label, SymbolName)) {
	if (
		(pos.TradeType == TradeType.Buy && pos.EntryPrice < Symbol.Bid)
		|| (pos.TradeType == TradeType.Sell && pos.EntryPrice > Symbol.Ask)
	) {
		pos.ModifyStopLossPrice(pos.EntryPrice);
	}
}

it basically puts a BE stop loss. the strange part is that in the logs i can find more than 1 error referring to an invalid stop loss price but it only crashes at some point, not punctually at every occurence of the error. looks like it tolerate a variable amount of errors and then it gives up crashing.

let me know if the informations given can help you more…

rohanlal019@gmail.com
01 Mar 2025, 04:52 ( Updated at: 01 Mar 2025, 04:53 )

RE: RE: RE: RE: RE: RE: bot crashes in backtest

kyosuke said: 

firemyst said: 

kyosuke said: 

 

I expect getting help in translating that error code into a textual understandable error description, not for sure putting the source code of a program on a public forum…I don't think my concerns are strange, are they? :)

 

Well I wouldn't expect much help then, bceause you need to give a bit more for even Spotware to have something to investigate. 

And not asking for whole code - just sample code that reproduces the issue.

yep…I get the point…unfortunately as i said before the problem seems to came out right after modifying a stop loss with an invalid price…so the piece of code is “simply” this, nothing strange:

foreach (var pos in Positions.FindAll(_Label, SymbolName)) {	if (		(pos.TradeType == TradeType.Buy && pos.EntryPrice < Symbol.Bid)		|| (pos.TradeType == TradeType.Sell && pos.EntryPrice > Symbol.Ask)	) {		pos.ModifyStopLossPrice(pos.EntryPrice);	}}

it basically puts a BE stop loss. the strange part is that in the logs i can find more than 1 error referring to an invalid stop loss price but it only crashes at some point, not punctually at every occurence of the error. looks like it tolerate a variable amount of errors and then it gives up crashing.

let me know if the informations given can help you more…

Are you using both eur and usd symbols paired with a single other currency? i.e. EURNZD and NZDUSD trades both open at the same time?

I'm having the same error as you and I've found that's what triggers the bug

kyosuke
04 Mar 2025, 13:21

RE: RE: RE: RE: RE: RE: RE: bot crashes in backtest

rohanlal019@gmail.com said: 

kyosuke said: 

firemyst said: 

kyosuke said: 

 

I expect getting help in translating that error code into a textual understandable error description, not for sure putting the source code of a program on a public forum…I don't think my concerns are strange, are they? :)

 

Well I wouldn't expect much help then, bceause you need to give a bit more for even Spotware to have something to investigate. 

And not asking for whole code - just sample code that reproduces the issue.

yep…I get the point…unfortunately as i said before the problem seems to came out right after modifying a stop loss with an invalid price…so the piece of code is “simply” this, nothing strange:

foreach (var pos in Positions.FindAll(_Label, SymbolName)) {	if (		(pos.TradeType == TradeType.Buy && pos.EntryPrice < Symbol.Bid)		|| (pos.TradeType == TradeType.Sell && pos.EntryPrice > Symbol.Ask)	) {		pos.ModifyStopLossPrice(pos.EntryPrice);	}}

it basically puts a BE stop loss. the strange part is that in the logs i can find more than 1 error referring to an invalid stop loss price but it only crashes at some point, not punctually at every occurence of the error. looks like it tolerate a variable amount of errors and then it gives up crashing.

let me know if the informations given can help you more…

Are you using both eur and usd symbols paired with a single other currency? i.e. EURNZD and NZDUSD trades both open at the same time?

I'm having the same error as you and I've found that's what triggers the bug

Hi, no the bot opens only positions for the pair it is attached on…so in backtesting there's no way it can have different pairs open at the same time

firemyst
06 Mar 2025, 00:20

RE: RE: RE: RE: RE: RE: RE: RE: bot crashes in backtest

kyosuke said: 

Hi, no the bot opens only positions for the pair it is attached on…so in backtesting there's no way it can have different pairs open at the same time

So to clarify, you don't have any statements in your bot's code where you explicitly get the market data from the chart or another symbol?

Something like:

var marketData = MarketData.GetBars(timeframe, symbolName)

?

Because you can run a bot that gets data from other symbols, and not necessarily against the chart you're running your bot against. 

kyosuke
06 Mar 2025, 08:33

RE: RE: RE: RE: RE: RE: RE: RE: RE: bot crashes in backtest

firemyst said: 

kyosuke said: 

Hi, no the bot opens only positions for the pair it is attached on…so in backtesting there's no way it can have different pairs open at the same time

So to clarify, you don't have any statements in your bot's code where you explicitly get the market data from the chart or another symbol?

Something like:

var marketData = MarketData.GetBars(timeframe, symbolName)

?

 

Because you can run a bot that gets data from other symbols, and not necessarily against the chart you're running your bot against. 

correct, I know I can collect data from other markets or timeframe but my bot only operates on the symbol/timeframe it is attached to