[Solved] type ’XFile’ is not a subtype of type ’File’ Error in Flutter

In this example, we are going to show you how to solve the error "type 'XFile' is not a subtype of type 'File'" error in Flutter App. We will also describe the cause of the error.

Error Message:

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═════════════
The following _TypeError was thrown building Home(dirty, state: _HomeState#361f6):
type 'XFile' is not a subtype of type 'File'

Cause of Error:

This error happens when you use XFile as a File in your app. For example:

XFile? image;

Image.file(image)
//runtime error:  type 'XFile' is not a subtype of type 'File'

Solution:

To solve this error, you can convert the XFile to File using the following Code:

File? file = File(XFile!.path);

For Example: (From image_picker plugin)

final ImagePicker _picker = ImagePicker();

//pick file from gallery, it will return XFile
final XFile? image = await _picker.pickImage(source: ImageSource.gallery);

//convert XFile to File
final File? imagefile = File(image!.path);

Now you can use this in Image() Widget:

Image.file(imagefile)

Or, you can also directly set Xfile to Image Widget like below:

Image.file(File(image!.path))

In this way, you can solve "type 'XFile' is not a subtype of type 'File'" error in your Flutter App.