whenever i use #build it says successfully loaded schematic and then i says it's done building but it did not place a single block.

so what is the problem
i had the same condition

I think the problem is you forgot how to read

I think the problem is you forgot how to read

i read and still dont know how to deal

none of the 3 points suit

then your schematic is empty, or it's unable to build it, or you don't have all the blocks in your hotbar