Hi Shanqing,
Thank you for your response and providing help. Your suggestions worked for installing tensorflowjs. I manually installed tensorflow==1.11.0cr2 and then installed tensorflowjs.
However another problem came up after installing the above frameworks. This time Keras fails to load when I try to import it in jupyter notebook. I read similar issues in github but not able to resolve it. I am attaching the error for reference. During installation of Keras 2.2.2 in command prompt I got some warnings about incompatibility as well. I took a snapshot of those warnings.
Please let me know if you have any suggestions.
Thank you,
Vivek