Android 在FireBaseCrashlytic新版本中找不到HttpRequest.Base64

我已将FireBase fabric迁移到FireBase Crashlysis，但在迁移FirebaseCrashlysis HttpRequest.Base64时，在新版本中找不到它，并出现错误“Base64 not found”，如何为新版本更改HttpRequest.Base64

旧版火基

import io.fabric.sdk.android.services.network.HttpRequest;

    public static String encrypt(String src) {
            try {
                Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
                cipher.init(Cipher.ENCRYPT_MODE, makeKey(), makeIv());
                return HttpRequest.Base64.encodeBytes(cipher.doFinal(src.getBytes()));
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

新版本Firebase

import com.google.firebase.crashlytics.internal.network.HttpRequest;

    public static String encrypt(String src) {
            try {
                Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
                cipher.init(Cipher.ENCRYPT_MODE, makeKey(), makeIv());
                return HttpRequest.Base64.encodeBytes(cipher.doFinal(src.getBytes()));
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }