Formate e valide JSON em uma visualização vertical para percorrer objetos e arrays aninhados. Revise respostas de API, dados de configuração e copie apenas o trecho necessário.
The following causes will cause JSON to fail.
It's hard for you to find out the wrong reason:
Non-number type keys in 1,JSON string without double quotes
There's a tab like \t in JSON, which looks like a space, but it's because of its existence, which leads to a failure to verify, just remove it.
Three, Bom's head in the editor will cause JSON to fail.