the syntax of C # 12 is not fully supported, and there are issues with the known Collection expressions

[xzf888]

When it appears in the code Unable to format

internal class Program
{
private static void Main(string[] args)
{
List Files = ["12"];
var i = Files.Count;
Console.WriteLine(i);
}
}

["DEBUG" - 10:34:18] Ensure there is a csharpier process for d:\TEST
["WARN" - 10:34:18] Received data on stderr from the running charpier process
"Error d:\TEST\Program.cs - Failed to compile so was not formatted.\r\n (6,30): error CS1525: 表达式项“[”无效\r\n"
["INFO" - 10:34:18] File is ignored by .csharpierignore or there was an error

[xzf888]

The above code was escaped incorrectly, the following is the correct code
internal class Program { private static void Main(string[] args) { List<string> Files = ["12"]; var i = Files.Count; Console.WriteLine(i); } }

[belav]

You are more than likely not on the latest csharpier. Collection expressions have been supported for a while now. 0.30.5 is the latest. You can test your code on playground.csharpier.com to see that it works.

[xzf888]

The VSCode extension is the latest, but I don't know why it doesn't work. I searched for the answer to the previous question and deleted the C: \Users\xzf\AppData\Local\CSharpier folder. After reinstalling the extension, it worked fine

[belav]

The VSCode extension is versioned separately. It works with any version of csharpier. Csharpier is a dotnet tool that can be installed globally or locally to a project. The extension will prompt you to install csharpier if it doesn't find the tool and installs the latest at that time.

https://learn.microsoft.com/en-us/dotnet/core/tools/global-tools has all the information about how to manage, install and update tools.