error 55 when trying to run included Filter.c script

Hi,

Filter compiling...........
Error 055: No bars generated
Chart...
Error 047: No bars to plot!

I dont know why it happens, the script is unmodified version included with new installation of zorro.
Any ideas?

The errors are explained in the manual.

If you fill in an asset in the script.

Like :

asset("USD/CAD"); // dummy asset

Then works.

I know, but why it doesnt work with the dummy asset?
You create artificial time series in the script, you dont use any real asset.

I know what the error means, I checked the manual.
I also checked the script and still dont understand why this particular error occurs.

Look at error 055 in the manual again. It says your price history is missing.

You need historical data for that respective asset. Some of it is available in the download section. You can otherwise download the data directly from your broker using the Download.c script.

Do also make sure your asset list is correctly configured to your broker. This is also explained in the manual.

Although the filter script uses an artificial price curve, it's otherwise just a normal script and will throw the usual error when you selected an asset with missing history - just as any other script.