Keep you computer connected to the internet during the installation and also while creating new project.
At this screen

confirm that the Android SDK Location doesn’t contain any space.
e.g., C:\Users\nishchal sid\AppData\Local\Android\Sdk is not correct as it has space in it (this will occur only when your Windows username has space). In such case change the location of SDK to something like C:\AndroidSDK to resolve the problem.
Thank you!