Closed Issue: npm not installed dialog has a (null) [1187]

```
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npm Not Installed
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Could not find npm.cmd. Ensure you have a recent version of node.js installed and have specified the location of node.exe in the project properties, or that it is available on your system PATH.



The following error occurred trying to execute npm.cmd:



Cannot find npm.cmd at '(null)' nor on your system PATH. Ensure node.js is installed.
---------------------------
OK
---------------------------
```
Comments: The path is null when this happens, and this information is useful for us to know when the user reports the error. It's clear what the user should do here regardless of the null value.