reason for the above problem is vendor name. It has a space between my names.
Is there any way to solve this problem??

出现上述问题的原因是供应商名称。我的名字之间有一个空格。有什么办法可以解决这个问题吗？

I tried to change my user folder name but some reasons It was not worked.
Is there any way to solve this problem without changing my name??

我试图更改我的用户文件夹名称，但由于某些原因不起作用。有没有办法解决这个问题而不更改我的名字？？

If anyone stumbles around this, you could provide the vendor name yourself:

如果有人在这方面遇到困难，您可以自己提供供应商名称：

While running composer init, just enter the Package Name manually:

在运行Composer init时，只需手动输入包名：

In this case, just enter: ruchiralakmal and as Leroy pointed.

在本例中，只需输入：ruchiralakmal和Leroy所指出的。