SyntaxError: Unexpected token o in JSON at position 1

This error occurs when there is a syntax error in the JSON data. The "Unexpected token o" message indicates that the parser encountered an "o" character in a position where it was not expected.

To fix this error, you need to examine the JSON data and check for any syntax errors, such as missing or extra commas, mismatched brackets or quotes, or invalid data types.

Here is an example of JSON data with a syntax error:

{
  "name": "John",
  "age": 30,
  "address": {
    "street": "Main St"
    "city": "New York"
  }
}

In this example, there is a missing comma after "Main St" in the "address" object. To fix the error, add a comma after "Main St":

{
  "name": "John",
  "age": 30,
  "address": {
    "street": "Main St",
    "city": "New York"
  }
}