invalid character 'ï' looking for beginning of value

This error message occurs when there is an invalid character in the JSON data being parsed. Specifically, the error indicates that the parser is looking for the opening quotation mark that starts a JSON value, but instead found the character 'ï', which is not a valid JSON character.

This error can occur for a few different reasons. One possibility is that the data being parsed contains non-ASCII characters that are not properly encoded. Another possibility is that there is an issue with the way the JSON data is being generated, such as a bug in the code that is generating the JSON.

To fix this error, you will need to identify the source of the invalid character and correct it. This may require examining the data being parsed, checking the encoding of the data, and reviewing the code that is generating the JSON. Once the issue has been identified and fixed, the JSON should be able to be parsed without error.