Plugins fail to install on Windows OS

[veirus]

OS: Windows 8.1 x64
GVIM:

:ve
VIM - Vi IMproved 8.0 (2016 Sep 12, compiled May 14 2018 03:50:44)
MS-Windows 64-bit GUI version with OLE support
Included patches: 1-1839
Compiled by micbou <contact@micbou.com>
Huge version with GUI.  Features included (+) or not (-):
+acl                +emacs_tags         +mouse              +tag_binary
+arabic             +eval               +mouseshape         +tag_old_static
+autocmd            +ex_extra           +multi_byte_ime/dyn -tag_any_white
+autoservername     +extra_search       +multi_lang         +tcl/dyn
+balloon_eval       +farsi              +mzscheme/dyn       -termguicolors
-balloon_eval_term  +file_in_path       +netbeans_intg      +terminal
+browse             +find_in_path       +num64              -tgetent
++builtin_terms     +float              +ole                -termresponse
+byte_offset        +folding            +packages           +textobjects
+channel            -footer             +path_extra         +timers
+cindent            +gettext/dyn        +perl/dyn           +title
+clientserver       -hangul_input       +persistent_undo    +toolbar
+clipboard          +iconv/dyn          -postscript         +user_commands
+cmdline_compl      +insert_expand      +printer            +vertsplit
+cmdline_hist       +job                +profile            +virtualedit
+cmdline_info       +jumplist           +python/dyn         +visual
+comments           +keymap             +python3/dyn        +visualextra
+conceal            +lambda             +quickfix           +viminfo
+cryptv             +langmap            +reltime            +vreplace
+cscope             +libcall            +rightleft          -vtp
+cursorbind         +linebreak          +ruby/dyn           +wildignore
+cursorshape        +lispindent         +scrollbind         +wildmenu
+dialog_con_gui     +listcmds           +signs              +windows
+diff               +localmap           +smartindent        +writebackup
+digraphs           +lua/dyn            +startuptime        -xfontset
+directx            +menu               +statusline         -xim
-dnd                +mksession          -sun_workshop       +xpm_w32
-ebcdic             +modify_fname       +syntax             -xterm_save
   system vimrc file: "$VIM\vimrc"
     user vimrc file: "$HOME\_vimrc"
 2nd user vimrc file: "$HOME\vimfiles\vimrc"
 3rd user vimrc file: "$VIM\_vimrc"
      user exrc file: "$HOME\_exrc"
  2nd user exrc file: "$VIM\_exrc"
  system gvimrc file: "$VIM\gvimrc"
    user gvimrc file: "$HOME\_gvimrc"
2nd user gvimrc file: "$HOME\vimfiles\gvimrc"
3rd user gvimrc file: "$VIM\_gvimrc"
       defaults file: "$VIMRUNTIME\defaults.vim"
    system menu file: "$VIMRUNTIME\menu.vim"
Compilation: cl -c /W3 /nologo  -I. -Iproto -DHAVE_PATHDEF -DWIN32  -DFEAT_CSCOPE -DFEAT_TERMINAL -DFEAT_NETBEANS_INTG -DFEAT_JOB_CHANNEL   -DFEAT_XPM_W32   -DWINVER=0x0501 -D_WIN32_WINNT=0x0501 /MP -DHAVE_STDINT_H /Ox /GL -DNDEBUG  /MD -DFEAT_OLE -DFEAT_MBYTE_IME -DDYNAMIC_IME -DGLOBAL_IME -DFEAT_MBYTE -DFEAT_GUI_W32 -DFEAT_DIRECTX -DDYNAMIC_DIRECTX -DFEAT_DIRECTX_COLOR_EMOJI -DDYNAMIC_ICONV -DDYNAMIC_GETTEXT -DFEAT_TCL -DDYNAMIC_TCL -DDYNAMIC_TCL_DLL=\"tcl86t.dll\" -DDYNAMIC_TCL_VER=\"8.6\" -DFEAT_LUA -DDYNAMIC_LUA -DDYNAMIC_LUA_DLL=\"lua53.dll\" -DFEAT_PYTHON -DDYNAMIC_PYTHON -DDYNAMIC_PYTHON_DLL=\"python27.dll\" -DFEAT_PYTHON3 -DDYNAMIC_PYTHON3 -DDYNAMIC_PYTHON3_DLL=\"python36.dll\" -DFEAT_MZSCHEME -I "C:\Racket\include" -DMZ_PRECISE_GC -DDYNAMIC_MZSCHEME -DDYNAMIC_MZSCH_DLL=\"libracket3m_a4da80.dll\" -DDYNAMIC_MZGC_DLL=\"libracket3m_a4da80.dll\" -DFEAT_PERL -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DDYNAMIC_PERL -DDYNAMIC_PERL_DLL=\"perl526.dll\" -DFEAT_RUBY -DDYNAMIC_RUBY -DDYNAMIC_RUBY_VER=24 -DDYNAMIC_RUBY_DLL=\"x64-msvcrt-ruby240.dll\" -DFEAT_HUGE /Fd.\ObjGXOULYHTRZAMD64/ /Zi
Linking: link  /nologo /subsystem:windows /opt:ref /LTCG:STATUS /HIGHENTROPYVA:NO oldnames.lib kernel32.lib advapi32.lib shell32.lib gdi32.lib  comdlg32.lib ole32.lib uuid.lib /machine:AMD64 gdi32.lib version.lib   winspool.lib comctl32.lib advapi32.lib shell32.lib  /machine:AMD64  msvcrt.lib oleaut32.lib user32.lib  /nodefaultlib:lua53.lib  /STACK:8388608  /nodefaultlib:python27.lib /nodefaultlib:python36.lib   "C:\ActiveTcl\lib\tclstub86.lib" WSock32.lib xpm\x64\lib-vc14\libXpm.lib /PDB:gvim.pdb -debug

.vimrc:

if &cp | se nocp | endif
set rtp^=~\.vim,~\.vim\after
let &packpath = &runtimepath

" begin section
call zen#init()
Plugin 'junegunn/goyo.vim' 
Plugin 'https://github.com/prakashdanish/vimport'

ZenInstall output:

vim-zen - [ Installation finished!	|	 Time: 0.125 ]
===================================================

[x] goyo.vim: [ERROR] '{' is not recognized as an internal or external command, operable program or batch file.
[x] vimport: [ERROR] '{' is not recognized as an internal or external command, operable program or batch file.

[ArthurZ]

Same error on Win 10 Vim 8.1

[danishprakash]

Sorry but I can't really work on this due to the lack of a Windows machine, but if either of you could, it'd be great.