You've entered an unknown username or password, I can't login

[xavierjose]

I can't log in, in alfresco content services, I'm putting in the default credentials, but I can't authenticate,
I'm in the development environment, I simply get this error: You've entered an unknown username or password.
I followed all requirements and guidelines in the documentation: https://www.alfresco.com/abn/adf/docs/tutorials/creating-your-first-adf-application/

[abhinavmishra14]

To start with, Couple of things to check in this case: 

1- Make sure repository is up and running. You can check by logging in to the repository: 

http://localhost:8080/alfreso/service/index

provide default credentials as you are using. Generally default is admin:admin

2-  if your 1st step is successful , then  Make sure you have right config to connect to repository host 

e.g. https://github.com/Alfresco/alfresco-content-app/blob/develop/app/src/app.config.json#L3

3- If your 1st failed to login, check the alfresco.log, Catalina.out logs to see if you can observe any errors.