Why Does Gson Throw 'Expected BEGIN_OBJECT but was STRING' and How Can I Fix It?

"Expected BEGIN_OBJECT but was STRING" Error in Gson Parsing

When attempting to parse JSON data using Gson, you may encounter the error message "Expected BEGIN_OBJECT but was STRING at line 1 column 1." This indicates an issue with the structure of the JSON string being parsed.

In your code snippet, the parseStringToObject method attempts to parse a JSON string into an Object instance. However, the error suggests that the JSON string does not conform to the expected format.

The expected format begins with an opening curly brace ({) to indicate an object. In your case, the JSON string starts with a quote mark ("), which is invalid for an object.

To resolve this error, ensure that your JSON string follows the correct formatting guidelines:

• It should start with an opening curly brace and end with a closing curly brace.
• Each key-value pair should be enclosed in double quotes.

Example of a valid JSON object:

{
  "key_1": "value_1",
  "key_2": 123
}

Once the JSON string is properly formatted, you should be able to parse it into an Object instance using Gson without encountering the "Expected BEGIN_OBJECT but was STRING" error.

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