Unexplained errors


#1

I’m getting the following error when trying to run a query:

{“error” : “not a quad.Value: \u003cnil\u003e”}

The quads might have unicode characters. The import didn’t return any errors.

The query worked as expected the last time it was tested on a subset of the data

Any ideas how to figure out what these cryptic messages with zero debugging information mean?


#2

Hi @ali.syed,

Can you provide a minimal reproducer? It’s likely related to some specific value in a single quad.


#3

Hi dennwc,

I just tried it by loading the following:

“100” “precedes” “101” .
“113” “precedes” “114” .
“21” “precedes” “21” .
“21” “precedes” “297” .
“21” “precedes” “298” .
“21” “precedes” “299” .
“21” “precedes” “304” .
“21” “precedes” “526” .
“21” “precedes” “529” .
“21” “precedes” “536” .
“21” “precedes” “537” .
“21” “precedes” “540” .

Please let me know if you find anything

Thanks


#4

Hi again,

I actually just saw the problem. It was related to my query :confused: and one tuple as you mentioned.

It started working when I replaced the illegal " mark, and fixed the query

Thanks for all the help