Firebase上传器AsyncTask doinBackground（）错误android

Question

我正在使用聊天应用程序。直到Android 28sdk都可以正常工作，但是当我拒绝androidx遇到此问题后，请检查下面的代码和错误截图。

Error Code Image 1

Error Code Image 2

private void compressAndUpload(final Context context, final String child, final File file) {
        compressionTask = new AsyncTask<File, Void, String>() {
            @Override
            protected String doInBackground(File... files) {
                String filePathCompressed = null;
                Uri originalFileUri = Uri.fromFile(files[0]);
                File tempFile = new File(context.getCacheDir(), originalFileUri.getLastPathSegment());
                //tempFile = File.createTempFile(originalFileUri.getLastPathSegment(), null, context.getCacheDir());
                if (child.equals("images")) {
                    filePathCompressed = SiliCompressor.with(context).compress(originalFileUri.toString(), tempFile);
                } else {
                    try {
                        filePathCompressed = SiliCompressor.with(context).compressVideo(files[0].getPath(), context.getCacheDir().getPath());
                    } catch (URISyntaxException e) {
                        e.printStackTrace();
                    }
                }
                if (filePathCompressed == null)
                    filePathCompressed = "";
                return filePathCompressed;
            }

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                File compressed = new File(s);
                fileUri = Uri.fromFile(compressed.length() > 0 ? compressed : file);
                FirebaseStorage storage = FirebaseStorage.getInstance();
                if (uploadRef == null)
                    uploadRef = storage.getReference().child(child).child(fileUri.getLastPathSegment());

                if (replace) {
                    upload();
                } else {
                    checkIfExists();
                }
            }
        };

        compressionTask.execute(file);
    }