Android应用Chrome Cast会话启动失败（错误码15）求助

我之前参考官方教程在Android应用中实现了Chrome Cast投屏功能，原本能正常投屏视频，配置没做任何变更（Receiver Application ID用的是DEFAULT_MEDIA_RECEIVER_APPLICATION_ID），但现在启动会话时出现问题：

• 能正常进入onSessionStarting回调
• 但随后触发onSessionStartFailed，错误码为15

回调代码片段 #

@Override 
public void onSessionStarting(CastSession session) { 
    // 能够进入此方法 
} 

@Override 
public void onSessionStartFailed(CastSession session, int error) { 
    // error =15 
}

相关Logcat日志（部分截断） #

05-18 19:13:53.757 16733-16733/? E/SdkNetworkParameterUtils: getNetworkOperatorForSubscription [int] 
05-18 19:14:04.022 16733-16733/? E/SdkNetworkParameterUtils: getNetworkOperatorForSubscription [int] 
05-18 19:14:13.726 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:13.726 859-1019/? E/QC-time-services: Receive Passed == base = 12, unit = 1, operation = 0, result = 0 
05-18 19:14:13.734 859-1019/? E/QC-time-services: Receive Passed == base = 13, unit = 1, operation = 0, result = 0 
05-18 19:14:13.737 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:13.306 685-1529/? E/QC-time-services: Daemon:Update to modem bit set 
05-18 19:14:13.307 31403-31403/? E/QC-time-services: Receive Passed == base = 2, unit = 1, operation = 0, result = 0 
05-18 19:14:13.307 685-751/? E/QC-time-services: Daemon:tod_update_ind_cb: Got Update from modem msg_id 40 
05-18 19:14:13.307 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:17.437 16733-16733/? E/SdkNetworkParameterUtils: getNetworkOperatorForSubscription [int] 
05-18 19:14:21.084 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:21.084 859-1019/? E/QC-time-services: Receive Passed == base = 12, unit = 1, operation = 0, result = 0 
05-18 19:14:21.095 859-1019/? E/QC-time-services: Receive Passed == base = 13, unit = 1, operation = 0, result = 0 
05-18 19:14:21.095 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:22.343 685-1707/? E/QC-time-services: Daemon:Update to modem bit set 
05-18 19:14:22.343 31403-31403/? E/QC-time-services: Receive Passed == base = 2, unit = 1, operation = 0, result = 0 
05-18 19:14:22.344 685-751/? E/QC-time-services: Daemon:tod_update_ind_cb: Got Update from modem msg_id 40 
05-18 19:14:22.344 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:27.721 16733-16733/? E/SdkNetworkParameterUtils: getNetworkOperatorForSubscription [int] 
05-18 19:14:43.076 16733-16733/? E/SdkNetworkParameterUtils: getNetworkOperatorForSubscription [int] 
05-18 19:14:50.931 712-712/? E/cnss-daemon: Stale or unreachable neighbors, ndm state: 16 
05-18 19:14:52.242 1521-1995/? E/IzatSvc_Wiper: W/Num of elements returned by LOWI 5 
05-18 19:14:53.095 700-24959/? E/AudioFlinger: open /proc/28333/cmdline error 
05-18 19:14:54.964 710-928/? E/QC-time-services: Receive Passed == base = 12, unit = 1, operation = 0, result = 0 
05-18 19:14:54.965 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:54.973 710-928/? E/QC-time-services: Receive Passed == base = 13, unit = 1, operation = 0, result = 0 
05-18 19:14:54.973 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:56.324 685-1795/? E/QC-time-services: Daemon:Update to modem bit set 
05-18 19:14:56.325 31403-31403/? E/QC-time-services: Receive Passed == base = 2, unit = 1, operation = 0, result = 0 
05-18 19:14:56.327 685-751/? E/QC-time-services: Daemon:tod_update_ind_cb: Got Update from modem msg_id 40 
05-18 19:14:56.327 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:58.048 710-928/? E/QC-time-services: Receive Passed == base = 12, unit = 1, operation = 0, result = 0 
05-18 19:14:58.049 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:58.055 710-928/? E/QC-time-services: Receive Passed == base = 13, unit = 1, operation = 0, result = 0 
05-18 19:14:58.056 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:58.269 685-1822/? E/QC-time-services: Daemon:Update to modem bit set 
05-18 19:14:58.271 685-751/? E/QC-time-services: Daemon:tod_update_ind_cb: Got Update from modem msg_id 40 
05-18 19:14:58.271 685-739/? E/QC-time-services: Daemon: Time-services: Waiting to acceptconnection 
05-18 19:14:58.272 31403-31403/? E/QC-time-services: Receive Passed == base = 2, unit = 1, operation = 0, result = 0 
05-18 19:15:08.403 16733-16733/? E/SdkNetworkParameterUtils: getNetworkOperatorForSubscription [int] 
05-18 19:15:13.624 712-712/? E/cns

具体排查方向 #

错误码15对应CastStatusCodes.ERROR_RECEIVER_NOT_FOUND，说明系统无法找到或连接到指定的接收器应用。结合你的情况，推荐按以下步骤排查：

• 确认网络环境一致性

  • 确保Android设备和Cast设备处于同一个WiFi网络，且网络未开启AP隔离（很多路由器默认开启，会阻止设备间通信）。
  • 尝试重启路由器和Cast设备，排除临时网络故障。

• 验证接收器ID有效性

  • 虽然你用的是默认ID，但可以尝试直接替换为字符串形式的官方默认接收器ID：CC1AD845，避免常量引用可能出现的问题。
  • 确认Cast设备支持默认媒体接收器（大部分现代Cast设备都支持，但旧固件可能存在兼容性问题）。

• 检查应用权限与系统设置

  • 确认应用已申请并获得ACCESS_WIFI_STATE、CHANGE_WIFI_STATE权限，这些是Cast设备发现和连接的必要权限。
  • 关闭Android设备上的VPN、代理设置，这类服务会干扰Cast的网络通信。

• 获取更精准的Cast日志

  • 当前日志中缺乏Cast相关的核心信息，建议在Logcat中过滤标签为Cast、CastSdk、SessionManager的日志，能找到更详细的失败原因描述，比如接收器超时、连接拒绝等。

• 更新SDK与设备固件

  • 升级应用中的Cast SDK到最新版本，修复已知的兼容性问题。
  • 在Google Home应用中检查Cast设备的固件更新，旧固件可能无法适配最新的SDK。

• 交叉测试验证

  • 用YouTube、Netflix等官方应用测试投屏，如果这些应用也无法投屏，说明问题出在Cast设备或网络；如果能正常投屏，那问题大概率在你的应用代码或配置中。

内容的提问来源于stack exchange，提问作者Sumitkumar Dhule