SQL 2014: the server you are trying to connect to doesn't have any models or you don't have access

Hi,

After creating the multidimensional cube I am able to connect with excel but not with Power BI. I have tried all three different connection method as follows:

With Live connection:

It gives error as stated subject line

 Fig 1: Live Connection issue

Import option: 

Even it doesn't work with Import option. When I choose Import option I am able to connect and can see the database name but can't see the cube name under the database, so not able to choose tables.

Import connection showing database name but missing cube name

Fig 2: Import connection showing database name but missing cube name

Import connection with MDX

This one works.

I found similar blog,  where I have checked with version; My SQL server version (12.0.5) which means SQL server 2014 SP2.

Since I was not sure where is the issue, I have created very small cube by using one fact and one dimension by using the same VS and deployed to same SSAS server which works fine with Power BI live connection.

However, the existing cube doesn’t work with Live and Import connection. I have tried by changing the SSAS cube database name but did not work really. It's seems to me issue with the cube. 

In this situation, I am really wondering what can go wrong with the cube? Your suggestion will be really appreciated.