error message

[velocity]

I am continuing this post from the general programing section of the blog because this is a NT7 issue.

I have an indicator that stays on the chart for a minute or two and then goes away printing the following error message

Error on calling 'OnBarUpdate' method for indicator 'myindicator' on bar 257: Object reference not set to an instance of an object.

I have tracked it down to the following code highlighted in RED that is generating the error when dealing with several dataseries:
protectedoverridevoid OnBarUpdate()
{

if (CurrentBar < 10) return;

double YCES = Closes[1][1]; // Yesterday Close of ES
double YCYM = Closes[2][1]; // Yesterday Close of YM



The indicator will take hard values as follows and will not generate an error:


double YCES = 1000; // Yesterday Close of ES
double YCYM = 1000; // Yesterday Close of YM

So where am I going wrong or is this a true bug?

Thanks

[NinjaTrader_JoshP]

Please post the complete stripped down version of the code that outlines the issue. Thank you.

[velocity]

protectedoverridevoid Initialize()
{

// current series-0 is default on chart = ES ##-## daily
Add("ES ##-##", PeriodType.Day, 1); //dataseries 2
Add("YM ##-##", PeriodType.Day, 1); //dataseries 3
}

protectedoverridevoid OnBarUpdate()
{

if (CurrentBar < 11) return;
double YCES = Closes[1][1]; // Yesterday Close of ES
double YCYM = Closes[2][1]; // Yesterday Close of YM
}

The strange thing about this is that when the market is closed the entire indicator works perfectly. It has all the right numbers and plots spot on.

during the market hours if I hard wire a value into YCES and YCYM, the indicator will not vanish from the chart and all the bells and whistles I programed work just fine.

any thoughts, I am using DTNIQ as my datafeed.

[NinjaTrader_JoshP]

velocity,

Do you have issues when using [0] index for the bar accessed?

[velocity]

I changed the code to:

if (CurrentBar < 11) return;
double YCES = Closes[1][0]; // Yesterday Close of ES
double YCYM = Closes[2][0]; // Yesterday Close of YM
}

Also tried:

if (CurrentBar < 11) return;
double YCES = Closes[0][1]; // Yesterday Close of ES
double YCYM = Closes[0][1]; // Yesterday Close of YM



and I have the same problems, the indicator flashes on then off the chart.

[NinjaTrader_JoshP]

velocity,

Situation begs a more simple question. Do you actually have data on all three instruments? Please try opening a daily chart of each one and ensure you actually have at least 20 days back on all three instruments used.

[velocity]

Josh,

I ran a print on all three data series. What is happening is that when I reload indicator script data 0 series is correct for the first line. Then what happens is it automatically defaults to data series 2 all by itself.

I truly believe there is an NT7 issue centered around a multiseries data indicator.

Also, on the chart the data goes back 365 days, yet in the output window the data only shows for a few lines.

Something is wrong here.

[NinjaTrader_JoshP]

velocity,

Please do a complete clean install of the new NT7B5 version and try the attached indicator. It works on my end with no problems.

[velocity]

Hi Josh,

Your indicator is behaving the same as mine. If you add

Plot0.Set(YCES);

and set

CalculateOnBarClose = false;

The plot will come on the chart for a brief second and then dissappear.


Does the YCES and YCYM need to be converted to a dataseries for the CalculateOnBarClose = false; to display?



Thanks

[velocity]

Josh,

Any thoughts on this?

I am still having issues here.

thanks

[NinjaTrader_JoshP]

Still investigating. Will get back to you at a later point in time. Thank you for your patience.

[velocity]

Josh,

Have you been able to duplicate this bug? Will it be fixed in the next release?

Thanks

[NinjaTrader_JoshP]

There may have been some changes around DataSeries objects which may have impact on this. On the latest sources I am not able to reproduce. Please try again on next version and let us know if you can reproduce.

Attached is a screenshot of running with CalculateOnBarClose = false and Plot0.Set(YCES) on a ES daily chart. Everything seems to be working correctly.

[aascotty]

Problem VS 2008 after clicking &quot;Start Debugging&quot;.

I've updated my NinjaTrader to latest version. When I click "Start Debugging" in Visual Studio, I get the following:

'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\mscorlib\2.0.0.0__b77a 5c561934e089\mscorlib.dll'
'NinjaTrader.exe' (Managed): Loaded 'C:\Program Files\NinjaTrader 6.5\bin\NinjaTrader.exe'
'NinjaTrader.exe' (Managed): Loaded 'C:\Program Files\NinjaTrader 6.5\bin\NinjaTrader.Core.dll'
'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Windows.Forms \2.0.0.0__b77a5c561934e089\System.Windows.Forms.dl l'
'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System\2.0.0.0__b77a 5c561934e089\System.dll'
'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Drawing\2.0.0 .0__b03f5f7f11d50a3a\System.Drawing.dll'
'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Xml\2.0.0.0__ b77a5c561934e089\System.Xml.dll'
'NinjaTrader.exe' (Managed): Loaded 'C:\Program Files\NinjaTrader 6.5\bin\WilsonORMapper.dll'
'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\System.Data\2.0.0.0__b 77a5c561934e089\System.Data.dll'
A first chance exception of type 'System.NullReferenceException' occurred in NinjaTrader.Core.dll
'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Configuration \2.0.0.0__b03f5f7f11d50a3a\System.Configuration.dl l'
2009-12-18 11:14:02:859 ******************* Session Start (Version 6.5.1000.14) *******************
2009-12-18 11:14:02:859 Attaching global exception handlers...
2009-12-18 11:14:02:859 InstallDir='C:\Program Files\NinjaTrader 6.5\'
2009-12-18 11:14:02:859 UserDataDir='C:\Documents and Settings\Scott\My Documents\NinjaTrader 6.5\'
'NinjaTrader.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Management\2. 0.0.0__b03f5f7f11d50a3a\System.Management.dll'
The thread 0xc98 has exited with code 0 (0x0).
The thread 0xab4 has exited with code 0 (0x0).
The thread 0xb78 has exited with code 0 (0x0).
2009-12-18 11:14:04:140 Cbi.Globals.MachineId: True/True
2009-12-18 11:14:04:140 MachineId='82D8A7DD6A8D003C1243F53F4494A5E0'
2009-12-18 11:14:04:140 OS='Microsoft Windows NT 5.1.2600 Service Pack 3'/'Win32NT'
2009-12-18 11:14:04:140 ProcessorCount='2'
2009-12-18 11:14:04:140 .NET Version='2.0.50727.3603'
2009-12-18 11:14:04:140 Processor=' Intel(R) Pentium(R) 4 CPU 3.20GHz'
2009-12-18 11:14:04:140 PhysicalMemory=1024 MB
2009-12-18 11:14:04:140 Timezone=EST -1 hour(s)
2009-12-18 11:14:04:140 Creating file type watcher...
2009-12-18 11:14:04:156 Retrieving license...
2009-12-18 11:14:04:171 Cbi.Licence.Download5
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
'NinjaTrader.exe' (Managed): Loaded 'jfqsur_8'
'NinjaTrader.exe' (Managed): Loaded 'C:\Program Files\NinjaTrader 6.5\bin\SMTP.Net.dll'
2009-12-18 11:14:05:031 Cbi.Licence.ProcessLicense13
2009-12-18 11:14:05:031 Cbi.Licence.Download99: 'Type=SimulationOnly State=Verified StartDate=5/1/2006 EndDate=12/30/2099 Collective2 Dtn ESignal External OpenTick Provider2 Replay Simulator Yahoo Gain Hosted AdvancedStrategyManagement AutomatedTrading BasicEntry Charting DataConnection SuperDom'
2009-12-18 11:14:05:031 Starting splash...
2009-12-18 11:14:05:234 Copying custom DLLs...
2009-12-18 11:14:05:234 Running Cbi.Globals.Install()...
2009-12-18 11:14:05:250 WARNING: Session Break (Version 6.5.1000.14)
2009-12-18 11:14:05:250 Loading server side config file...
2009-12-18 11:14:05:500 Clearing C:\Documents and Settings\Scott\My Documents\NinjaTrader 6.5\bin\Custom\Tmp...
2009-12-18 11:14:05:500 Loading C:\Documents and Settings\Scott\My Documents\NinjaTrader 6.5\bin\Custom\NinjaTrader.Custom.dll...
'NinjaTrader.exe' (Managed): Loaded 'C:\Documents and Settings\Scott\My Documents\NinjaTrader 6.5\bin\Custom\NinjaTrader.Custom.dll'
2009-12-18 11:14:05:562 Loading C:\Documents and Settings\Scott\My Documents\NinjaTrader 6.5\bin\Custom\NinjaTrader.Vendor.dll...
'NinjaTrader.exe' (Managed): Loaded 'C:\Documents and Settings\Scott\My Documents\NinjaTrader 6.5\bin\Custom\NinjaTrader.Vendor.dll'
2009-12-18 11:14:05:578 Creating user defined methods files...
2009-12-18 11:14:05:578 Instantiating serializers...

[NinjaTrader_JoshP]

aascotty,

I responded to your email with this same question. We would appreciate it if you could post 6.5 questions to a new thread outside of the NT7 beta section here. Thank you.