Hey guys,
I just had a look at this topic and will try to help you out.
Now, if you see the error message it does not mean it will not find strategies. It is just a warning that for 2 min the reactor did not find anything but if you leave it running, you might see results.
I am just running the monthly updates and for GBPUSD M15 I keep it to 300 мин trades and 1.2 Profit Factor.
More, you can try lowering the number of bars to 100000 so the reactor will work faster.
And by the way GBPUSD is a hard one to find a lot of strategies :)