Failed to register: Error: fabric-ca request register failed with errors [[{"code":0,"message":"No identity type provided. Please provide identity type"}]]解决方案

I try to run sample application as stated here : http://hyperledger-fabric.readthedocs.io/en/release/write_first_app.html

Everything looks good until I ran this command : node registerUser

Error :

Store path:/Users/johndoe/Desktop/myProject/fabric-samples/fabcar/hfc-key-store Successfully loaded admin from persistence Failed to register: Error: fabric-ca request register failed with errors [[{"code":0,"message":"No identity type provided. Please provide identity type"}]]

I checked logs by running docker logs ca.example.com command:

2017/11/08 09:43:07 [DEBUG] Successful authentication of 'admin'

2017/11/08 09:43:07 [DEBUG] Register request received

2017/11/08 09:43:07 [DEBUG] Received registration request from admin: &{RegistrationRequest:{Name:user1 Type: Secret:<> MaxEnrollments:1 Affiliation:org1.department1 Attributes:[] CAName:}}

2017/11/08 09:43:07 [DEBUG] Registration of 'user1' failed: No identity type provided. Please provide identity type

2017/11/08 09:43:07 [INFO] 172.18.0.1:60190 - "POST /api/v1/register" 0

解决方案：

在 fabcar/registerUser.js 文件修改第56行：

-    return fabric_ca_client.register({enrollmentID: 'user1', affiliation: 'org1.department1'}, admin_user);
+    return fabric_ca_client.register({enrollmentID: 'user1', affiliation: 'org1.department1',role: 'client'}, admin_user);

　　

Did I miss anything here? I successfully ran node enrollAdmin.js and able to get the generated eCert & key material in hfc-key-store

In my case, adding the user's role type make it works.

return fabric_ca_client.register({enrollmentID: 'user1', affiliation: 'org1.department1',role: 'client'}, admin_user);

• I have fixed this issue in fabric-samples using the same change github.com/hyperledger/fabric-samples/commit/… 
•  
  same issue is there in balance transfer example