Angular 错误：未捕获（承诺中）：资产'/存储/仿真/0/DCIM/Restored/IMG_20200115_103131.jpg'；找不到

正在使用nativescript应用程序，需要访问映像并将其转换为base64

.then(function(selection) {
    selection.forEach(function (selected) {
        imageSourceModule
        .fromAsset(selected)
        .then((imageSource) => {
            var imageBase64 = imageSource.toBase64String("jpg",60);
            console.log(imageBase64);