cp: cannot create regular file '/.kaggle/': Not a directory

I am trying to access all Kaggle datasets in Google Colab for machine learning works.I have uploaded Kaggle API named Kaggle.json to Colab file. and I installed Kaggle using

 !pip install -q Kaggle

And to add .json file in ~/.Kaggle/ directory I run following in cell to create Kaggle folder in colab file structure. !mkdir -p ~/.Kaggle/ And I try to place Kaggle.json inside /.Kaggle/ running following cell

!cp kaggle.json /.kaggle/

But it throws me error as shown below:

cp: cannot create regular file '/.kaggle/': Not a directory

Above method is illustrated in kaggle forum https://www.kaggle.com/general/51898 .But it doesn't works for me. Do you have any idea what's wrong is going with above implementation.Please Help me to solve this.

Thank you