Flutter Installation Error (dart.exe' is not recognized as an internal or external )

ERROR DESCRIPTION:

FIXING INSTRUCTIONS:
1) Install Windows PowerShell 5
2) Install Git

3) Create folder as name as 'src' in C:\

4) Above executions should be in PowerShell or CommandPrompt(CMD)
5) Check 'git --version' is executing success.
6) Go to file directon 'C:\src'
8) Check that Flutter files are cloned.
9) Execute health check Flutter command 'flutter doctor'
10) Execute version check Flutter command 'flutter --version'