Today I have start working on SharePoint Hosted APP.
I have done with prerequisite Setting up on-premises environment for app development
After That I have created New Project.
When first time I have click on F5 button, it shows error below
Error 1 Error occurred in deployment step 'Install app for SharePoint': The System Account cannot perform this action.
Then one more time I have click on F5 button, this time it shows different error
Error occurred in deployment step 'Install app for SharePoint': The provided App differs from another App with the same version and product ID
Please help me with this