14. 4. 2019 v 21:15, Tarquin Wilton-Jones via Therion <therion@speleo.sk>:
I do wish these error messages were a little more informative, pointing out where you made a mistake, but I am so glad it was something so simple. Does it actually not know what the problem is? Rather than saying "you put it in the wrong place" it says "the map item is not valid", which makes me assume a syntax error rather than a command hierarchy error.
(My favourite error is the one where I forget to click on some survey stations when defining a scrap, and it tells me "this map is too large, and you need to pick a smaller scale". Or the one where I click on a station that was already defined in another scrap, and it fails to put the right -name in the options - or it just picks the "next" station number which was not the right one. Same error message. Or some random code dumps about it failing to find the largest coordinate when closing lines. These messages are ... "fun".)
It looks there should be new section on wiki: Interpretation of error messages, I think. Martin