Unable to communicate

The version in the table is the version of the data channel plug-in.  The version referred to by the folder name in the downloaded version history is the server version.
The data channel plug-in version must match the server version
datachannel Latest version：https://github.com/pingxingyun/datachannel
datachannel Historical version：https://paraverse.cc/larkxr-resource/ -->Functional component，Data Channel _ Communication with applications
![](https://docs.paraverse.cc/media/202504/67f298ae17cc44f7bcb679348ef65e578561.png)

| version  | reason  | solution  |
| ------------ | ------------ | ------------ |
| all   |The authorization code does not enable the data channel service   | 1）The authorization code applied by the developer platform needs to open the data channel component service <br/> 2）Authorization code provided by Paraverse, contact Paraverse Business |
| Version 3250 or later  | taskid error passed in lr_client_start method | taskid may not be passed in the lr_client_start method ![](https://docs.paraverse.cc/media/202504/b54f56b681c34d88b8cf1f2410eb35946891.png) |
| Version 3250 or earlier  |taskid error passed in lr_client_start method   | 1）Check whether the configuration item of Interface Call with Additional parameters is set to Yes.。<br/> 2）appliId and taskId are confused. Whether the taskid used in the application to connect to the data channel service is dynamically obtained from the command line parameter  |