How to solve the error 1004?
can you elaborate a bit?
when does this error occur?
what is the error text?
also a screenshot of your relevant blocks could help us to help you...
see also
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by 
Taifun.
This error occur when I select Horizontal Line, Circle, Diamond, Hexagon, Heptagon, Octagon. The error text is "Canvas cannot draw the shape with a bad point list".
Please anybody help me in this error
You are building your point list wrong.
It is supposed to be two dimensional, not one-dimensional like you did.
For each pair of coordinates (X,Y), make a new sublist of (X,Y) and add that list to your points list as a single item.
I can't get your point. Can give me more explanation.
this means, use the make a list block, add your x and y coordinates as items and then add this list as one item in the main list
Taifun
I have done that but now also it is showing the same error. Now what I have to do to remove the error?
there is a general misunderstanding of lists and lists of lists...
now you are creating a list...
you have to create a main list, which consists of sublists of x,y coordinates...
EDIT: here is an example of a list of lists
https://puravidaapps.com/snippets.php#2lookupinpairs
Taifun
I am confused that which block I have to choose for Main List.
this is a create empty list block in the beginning...
to add a sublist into the main list, use an add item in list block together with your sublist
the sublist itself can be a make a list block together with two items, the x and y coordinate
Taifun
Thank you so much for your help and time.
Now it is working properly.
Thank you for your precious time.
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