# Error Codes
This document lists the error codes and corresponding instructions returned by the server and SDK.
# 100
description：appId cannot be empty
meaning：appId cannot be an empty string
# 101
description：SecretKey cannot be empty
meaning：SecretKey cannot be an empty string
# 102
description：userID cannot be empty
meaning：userID cannot be an empty string
# 103
description：SDK is not registered, please register
meaning：The APP must first call the registration interface to perform other operations.
# 104
description：SDK is disabled
meaning：The SDK is set to be unavailable, call SDKEnable, it can be used normally.
# 105
description：Update information must be current user
meaning：Update user information must be current user to see if the user is different
# 106
description：No logged in user
meaning：The user has not logged in yet, and the login interface is called.
# 107
description：no bound wallet
meaning：The current user has not yet bound the wallet
# 108
description：Extra is empty
meaning：Extra cannot be empty
# 109
description：Extra is not json
meaning：Extra must be in json format
# 110
description：Request：Behavior less than 100
meaning：Request：Actiontype must exceed 100
# 200
description：Request data exception, protobuf object failed to encode as data
meaning：Request data exception, protobuf object failed to encode as data
# 201
description：The agreement does not exist
meaning：The agreement does not exist
# 202
description：Return data error
meaning：Return data error
# 203
description：Return data parsing error
meaning：Return data parsing error
# 204
description：Service exception
meaning：Service exception
# 205
description：The network is successful, but the server return a error.
meaning：The network is successful, but the server returned an error
# 206
description：In request
meaning：Get sdk information request is in progress
# 207
description：Error of `URLSession`
meaning：Error when connecting to the network
# 208
description：Error while creating `URLRequest` from `Request`.
meaning：Error while requesting creation
# 209
description：Error while creating `Request.Response` from `(Data, URLResponse)`.
meaning：Request callback error
# 300
description：
meaning：RPC request address balance error