Error using dax studio

Hi KarthikBhupathy ,

The error message indicates that there is a duplicate key in the table list. This can happen when there are two or more tables with the same name in the model. Please refer the solution in the following thread to solve it:

Rename table name:

Solved: Unexpected error: An item with the same key has al... - Microsoft Fabric Community

In addition, the following links are the ones which has the similar problem as yours. Please review them and try to solve your problem.

Update the verison of DAX Studio to the latest one:

Solved: DAX Studio connection error "an item with the same... - Microsoft Fabric Community

Error refreshing table list: An item with the same key has already been added 

I updated to DAX Studio version 3.0.11 and in that version it works as expected.

---

Best Regards