0.3.1 will not install on Win7 Pro 64 - npm 6.9.0

[burque505]

I cannot get past this error:

> scripts/install.js

'scripts' is not recognized as an internal or external command,
operable program or batch file.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! rpscript@0.3.1 postinstall: `scripts/install.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the rpscript@0.3.1 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional log
ging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\yeah_that_is_me\AppData\Roaming\npm-cache\_logs\2019-06-20T17_34_32
_761Z-debug.log

Thanks in advance.

[burque505]

Tried again 20190919, same result. I monitored directory creation in %appdata%\npm\node_modules.
In the course of installation, in that directory:

1. Dir .staging is created;
2. Dir rpscript is created;
3. Install errors begin;
4. Dir rpscript is deleted.
   It is too quick for me to tell whether the deletion of step 4 occurs before or after step 3.