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Why Does `JsonConvert.DeserializeObject` Throw 'Unexpected Character Encountered' When Given a File Path?

Mary-Kate Olsen
Release: 2024-12-27 17:11:12
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Why Does `JsonConvert.DeserializeObject` Throw

Unexpected Character Encountered while Parsing JSON Value

When using Json.NET in C#, you may encounter the error: "Unexpected character encountered while parsing value: e. Path '', line 0, position 0." This indicates an issue with the JSON being parsed.

In this particular case, the issue lies in the DeserializeObject method. It expects a JSON value as input, but you are passing it a file path. The tmpfile variable contains the path to the JSON file, rather than the JSON data itself.

To resolve this issue, read the JSON data from the file and then pass it to DeserializeObject. Here's the modified code snippet:

string json = File.ReadAllText(tmpfile);
ViewerStatsFormat current = JsonConvert.DeserializeObject<ViewerStatsFormat>(json);
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By loading the JSON into a string first, you ensure that DeserializeObject receives a valid JSON value, resolving the "Unexpected character encountered" error.

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