Amazon AppStore SDK的PurchasingService实现IAP失败求助

• 正在实现Amazon IAP功能，已遵循官方文档使用3.0.3版本的AppStore SDK，按步骤在Google Pixel模拟器上测试，不确定是否因未使用亚马逊Fire设备引发问题。
• 克隆官方demo项目后，Logcat中仍出现相同错误：

CommandServiceClient: Binding Service!!!
2024-01-31 21:49:06.233  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           D  CommandServiceClient: Created intent with  action  com.amazon.venezia.CommandService
2024-01-31 21:49:06.240  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           E  CommandServiceClient: CommandServiceException happened, retriesLeft=1
                                                                                                    com.amazon.a.a.n.a.a.c: COMMAND_SERVICE_NOT_INSTALLED: null: null
                                                                                                        at com.amazon.a.a.n.a.d.e(CommandServiceClient.java:257)
                                                                                                        at com.amazon.a.a.n.a.d.a(CommandServiceClient.java:181)
                                                                                                        at com.amazon.a.a.n.a.a.a(AbstractCommandTask.java:124)
                                                                                                        at com.amazon.a.a.n.c.b.f(TaskWorkflow.java:78)
                                                                                                        at com.amazon.a.a.n.c.b.a(TaskWorkflow.java:49)
                                                                                                        at com.amazon.a.a.n.b.b$1.run(SimpleTaskPipeline.java:179)
                                                                                                        at android.os.Handler.handleCallback(Handler.java:958)
                                                                                                        at android.os.Handler.dispatchMessage(Handler.java:99)
                                                                                                        at android.os.Looper.loopOnce(Looper.java:205)
                                                                                                        at android.os.Looper.loop(Looper.java:294)
                                                                                                        at android.os.HandlerThread.run(HandlerThread.java:67)
2024-01-31 21:49:06.242  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           D  CommandServiceClient: Sleeping for 3200 ms
2024-01-31 21:49:09.445  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           D  CommandServiceClient: Binding Service!!!
2024-01-31 21:49:09.445  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           D  CommandServiceClient: Created intent with  action  com.amazon.venezia.CommandService
2024-01-31 21:49:09.447  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           E  CommandServiceClient: CommandServiceException happened, retriesLeft=0
                                                                                                    com.amazon.a.a.n.a.a.c: COMMAND_SERVICE_NOT_INSTALLED: null: null
                                                                                                        at com.amazon.a.a.n.a.d.e(CommandServiceClient.java:257)
                                                                                                        at com.amazon.a.a.n.a.d.a(CommandServiceClient.java:181)
                                                                                                        at com.amazon.a.a.n.a.a.a(AbstractCommandTask.java:124)
                                                                                                        at com.amazon.a.a.n.c.b.f(TaskWorkflow.java:78)
                                                                                                        at com.amazon.a.a.n.c.b.a(TaskWorkflow.java:49)
                                                                                                        at com.amazon.a.a.n.b.b$1.run(SimpleTaskPipeline.java:179)
                                                                                                        at android.os.Handler.handleCallback(Handler.java:958)
                                                                                                        at android.os.Handler.dispatchMessage(Handler.java:99)
                                                                                                        at android.os.Looper.loopOnce(Looper.java:205)
                                                                                                        at android.os.Looper.loop(Looper.java:294)
                                                                                                        at android.os.HandlerThread.run(HandlerThread.java:67)
2024-01-31 21:49:09.449  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           D  AbstractCommandTask: Exception occurred while processing task: com.amazon.a.a.n.a.a.c: COMMAND_SERVICE_NOT_INSTALLED: null: null
                                                                                                    com.amazon.a.a.n.a.a.c: COMMAND_SERVICE_NOT_INSTALLED: null: null
                                                                                                        at com.amazon.a.a.n.a.d.e(CommandServiceClient.java:257)
                                                                                                        at com.amazon.a.a.n.a.d.a(CommandServiceClient.java:181)
                                                                                                        at com.amazon.a.a.n.a.a.a(AbstractCommandTask.java:124)
                                                                                                        at com.amazon.a.a.n.c.b.f(TaskWorkflow.java:78)
                                                                                                        at com.amazon.a.a.n.c.b.a(TaskWorkflow.java:49)
                                                                                                        at com.amazon.a.a.n.b.b$1.run(SimpleTaskPipeline.java:179)
                                                                                                        at android.os.Handler.handleCallback(Handler.java:958)
                                                                                                        at android.os.Handler.dispatchMessage(Handler.java:99)
                                                                                                        at android.os.Looper.loopOnce(Looper.java:205)
                                                                                                        at android.os.Looper.loop(Looper.java:294)
                                                                                                        at android.os.HandlerThread.run(HandlerThread.java:67)
2024-01-31 21:49:09.450  9250-9271  Kiwi                    IAPKotlinApp.example.myapp           E  AbstractCommandTask: On Exception!!!!: com.amazon.a.a.n.a.a.c: COMMAND_SERVICE_NOT_INSTALLED: null: null

• 尝试过Stack Overflow上相关问题的解决方案，但均无效。

内容的提问来源于stack exchange，提问作者M. Ameen Akbar