cant install go outline for vs code

[burstman]

hello, i have a problem installing go outline in vs code.
Installing 1 tool at C:\Go\bin\gocode\test\bin
go-outline

Installing github.com/ramya-rao-a/go-outline FAILED

1 tools failed to install.

go-outline:
Error: Command failed: C:\Go\bin\go.exe get -u -v github.com/ramya-rao-a/go-outline

cd C:\Go\bin\gocode\test\src\github.com\ramya-rao-a\go-outline; git config remote.origin.url

exit status 1github.com/ramya-rao-a/go-outline (download)

cd C:\Go\bin\gocode\test\src\github.com\ramya-rao-a\go-outline; git pull --ff-only

fatal: not a git repository (or any of the parent directories): .git
package github.com/ramya-rao-a/go-outline: exit status 128

cd C:\Go\bin\gocode\test\src\github.com\ramya-rao-a\go-outline; git config remote.origin.url

exit status 1github.com/ramya-rao-a/go-outline (download)

cd C:\Go\bin\gocode\test\src\github.com\ramya-rao-a\go-outline; git pull --ff-only

fatal: not a git repository (or any of the parent directories): .git
package github.com/ramya-rao-a/go-outline: exit status 128