npm_prompt.lua:11: attempt to concatenate local 'package_version' (a nil value)

npm_prompt.lua

c:\cmder/vendor/clink-completions/npm_prompt.lua:11: attempt to concatenate local 'package_version' (a nil value)  

The solution that worked for me was to edit the file:
{YOUR_PATH}/cmder/vendor/clink-completions/npm_prompt.lua
and overwrite the related lines to be this instead:

The original npm_prompt.lua was (BEFORE FIX)  

...
local package_name = string.match(package_info, '"name"%s*:%s*"(%g-)"')
local package_version = string.match(package_info, '"version"%s*:%s*"(.-)"')
...

and the change is (AFTER FIX):  


...
local package_name = string.match(package_info, '"name"%s*:%s*"(%g-)"')
if package_name == nil then
    package_name = ''
end     
local package_version = string.match(package_info, '"version"%s*:%s*"(.-)"')
if package_version == nil then
    package_version = ''
end
...



```

An alternative that will completely hide the yellow (@) if both package_name and package_version are nil:

...
local package_name = string.match(package_info, '"name"%s*:%s*"(%g-)"') -- Unchanged
local package_version = string.match(package_info, '"version"%s*:%s*"(.-)"') -- Unchanged
if package_name == nil and package_version == nil then
    return false
end
if package_name == nil then
    package_name = ''
end
if package_version == nil then
    package_version = ''
end
...