Declare dependencies
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To ensure smooth communication between the Driver SDK and Fleet Engine, you need
to declare the necessary dependencies. This involves adding
specific libraries to your project and, if using ProGuard, updating your
configuration file.
Update ProGuard configuration
If you use ProGuard to optimize your builds, you may need to add the
following lines to your ProGuard configuration file:
-dontwarn com.google.**
-dontwarn io.grpc.**
-dontwarn okio.**
ProGuard supports the minimum Android API level 23.
What's next
Create authentication tokens
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Last updated 2025-08-28 UTC.
[null,null,["Last updated 2025-08-28 UTC."],[[["\u003cp\u003eThe Driver SDK requires specific dependencies to communicate with Fleet Engine, including adding libraries and updating ProGuard configuration.\u003c/p\u003e\n"],["\u003cp\u003eIf using ProGuard for optimization, add specific lines to your configuration file to avoid warnings related to the required libraries.\u003c/p\u003e\n"],["\u003cp\u003eProGuard supports a minimum Android API level of 23 for Driver SDK integration.\u003c/p\u003e\n"],["\u003cp\u003eFor subsequent steps, proceed to creating authentication tokens for securing communication.\u003c/p\u003e\n"]]],[],null,["# Declare dependencies\n\nTo ensure smooth communication between the Driver SDK and Fleet Engine, you need\nto declare the necessary dependencies. This involves adding\nspecific libraries to your project and, if using ProGuard, updating your\nconfiguration file.\n\nUpdate ProGuard configuration\n-----------------------------\n\nIf you use [ProGuard](https://www.guardsquare.com/en/products/proguard) to optimize your builds, you may need to add the\nfollowing lines to your ProGuard configuration file: \n\n -dontwarn com.google.**\n -dontwarn io.grpc.**\n -dontwarn okio.**\n\nProGuard supports the minimum Android API level 23.\n\nWhat's next\n-----------\n\n[Create authentication tokens](/maps/documentation/mobility/driver-sdk/scheduled/android/authenticate)"]]
