fetch image.uri throws a network error -the image

i am building a react native app that uses tensorflow and molienet model to classify images,
and i am using expo-image-picker to pick an image from the gallery,

let source= await ImagePicker.launchImageLibraryAsync({
        mediaTypes: ImagePicker.MediaTypeOptions.All,
        allowsEditing: true,
        aspect: [4, 3],
      });

       const response = await fetch( source.uri, {}, { isBinary: true });
   
the last line throws a network error, knowing that source.uri is 

“file:///data/user/0/host.exp.exponent/cache/ExperienceData/%2540nouragha%252FSmartRecognitionApp/ImageManipulator/90698957-22b1-4e28-a597-479f69a3918c.jpg”

does anyone have a solution?

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