Ipykernel is not running in conda root envirnoment.

While trying to install Ipykernel this thing happens. I am using miniconda3 with Python3.6.2
C:\Users\SAQLAIN>conda install ipykernel
Fetching package metadata .............
Solving package specifications: .

Package plan for installation in environment C:\Miniconda3:

The following NEW packages will be INSTALLED:

ipykernel: 4.6.1-py36h9617649_0

Proceed ([y]/n)? y

ipykernel-4.6. 100% |###############################| Time: 0:00:03 36.20 kB/s
ERROR conda.core.link:_execute_actions(337): An error occurred while installing pack
age 'defaults::ipykernel-4.6.1-py36h9617649_0'.
FileNotFoundError(2, 'The system cannot find the file specified', None, 2, None)
Attempting to roll back.

FileNotFoundError(2, 'The system cannot find the file specified', None, 2, None)

Reproduce `conda install ipykernel` in Miniconda3 with Python 3.6.2 on Windows, using the root environment described in the report. Inspect the FileNotFoundError during package installation; done means the command completes without rollback and ipykernel is installed.

Written by the indexing model from the issue text.