Janet Compile Output on Windows

output.txt

PS C:\Users\cmiles\source\repos\test-project> jpm build
generating executable c source...
compile error: unknown symbol reader on line 4, column 21 while compiling testproject.janet
error: expected integer key in range [0, 5), got nil
  in <anonymous> [C:\Program Files\Janet-1.9.1\bin\\jpm.janet] on line 594, column 19
  in do-rule [C:\Program Files\Janet-1.9.1\bin\\jpm.janet] on line 248, column 24
  in do-rule [C:\Program Files\Janet-1.9.1\bin\\jpm.janet] (tailcall) on line 246, column 44
PS C:\Users\cmiles\source\repos\test-project> jpm build
generating executable c source...
compiling and linking build\testproject.exe...
testproject.exe.c
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_nanbox32_from_tagi referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_nanbox32_from_tagp referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_loop referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_core_env referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_array referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_array_push referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_cstring referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_csymbol referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_table referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_table_put referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_fiber referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_unmarshal referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_env_lookup referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_gcroot referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_gclock referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_gcunlock referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_init referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_deinit referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_continue referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_stacktrace referenced in function _main
testproject.exe.obj : error LNK2019: unresolved external symbol _janet_arity referenced in function _main
C:\Program Files\Janet-1.9.1\C\libjanet.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
build\testproject.exe : fatal error LNK1120: 21 unresolved externals
error: command exited with status 2
  in shell [C:\Program Files\Janet-1.9.1\bin\\jpm.janet] (tailcall) on line 135, column 5
  in do-rule [C:\Program Files\Janet-1.9.1\bin\\jpm.janet] on line 248, column 24
  in do-rule [C:\Program Files\Janet-1.9.1\bin\\jpm.janet] (tailcall) on line 246, column 44

It turns out that if I used the "x86 Native Command Prompt for VS 2019", jpm compiles without issue.