InvalidOperationException on File return

Question

am running into some weird issue when i try to return a file to be downloaded, so this is my code

string filePath = Path.Combine(Path1, Path2, filename);
return File(filePath, "audio/mp3", "myfile.mp3");

but the problem it return this error

InvalidOperationException: No file provider has been configured to process the supplied file.

am not sure what i have missed, any help ?

Answer 1

so the way to return a File method , is as @SeM suggest but by removing the file name from file path.

string filePath = Path.Combine(Path1, Path2);

IFileProvider provider = new PhysicalFileProvider(filePath);
IFileInfo fileInfo = provider.GetFileInfo(filename);
var readStream = fileInfo.CreateReadStream();

return File(readStream, "audio/mpeg", fileName);