Hey,

I have run a strategy with optimization.
I Have received this error- what does it mean?

I Have run it for a year and that is when i got the error, I did the same for 6 months and I saw the trade list.
Is there a limit for the amount of treads that I can see at once?

Hi,

An "Object reference not set..." may mean that the visualizer stumbled onto an unexpected null value internally and has had to be unloaded by WL. Unfortunately, it's not possible to troubleshoot this error remotely. Its appearance may be an indication that something is not quite right with the data.

Since you work with tick data, there may be quite a lot of trades created. So your notion is reasonable. (On the other hand if you hit some memory limit you might have equally encountered an OutOfMemory exception.)

Your RAM is the limit. For all practical purposes, a ListView like Trades may slow to a crawl or crash if supplied with a huge amount of items. How many trades does the 6-month backtest have?

Thank you for your quick replay.

In the 6- months backtest I have 1031 trades
In the 1 year backtest I have 2310 Trades

That'd be too few trades to bring any modern PC to its knees. Here's some food for thought:

* Try playing with the date range until you find the culprit trade that breaks the Trades tab.
* Does the issue affect all strategies, some strategies, or just a particular one?
* The same question with regard to the data: any, all, particular DataSet?
* What kind of optimization are you running?

Hey,

Thank you for your replay.

I have succeeded to see a Trade List of one year back test.

I have a different issue now- I can not see the "By Period" part.
I see the results of the first 3 months (Jan-Mar), for the next ones (Apr-Dec) I see he result "0"- why is that?

QUOTE:
I have succeeded to see a Trade List of one year back test.

Out of curiosity, what did you do?

QUOTE:
I see the results of the first 3 months (Jan-Mar), for the next ones (Apr-Dec) I see he result "0"- why is that?

Who knows. Maybe we could help if you give us at least some details for troubleshooting. Currently there's nothing to work with.