"C:\Program Files\nodejs\node.exe" C:\Users\XiaoCong\AppData\Roaming\npm\node_modules\@angular\cli\bin\ng new Angular4_hello --dir=. --ng4
The option ‘--ng4‘ is not registered with the new command. Run `ng new --help` for a list of supported options.
Project name "Angular4_hello" is not valid. New project names must start with a letter, and must contain only alphanumeric characters or dashes. When adding a dash the segment after the dash must also start with a letter.
