MySQL Bugs: #77951: Installer fails with "value cannot be null" error on path1

Bug #77951	Installer fails with "value cannot be null" error on path1
Submitted:	5 Aug 2015 19:52	Modified:	6 Aug 2015 2:30
Reporter:	Matthew Lowery	Email Updates:
Status:	Not a Bug	Impact on me:	None
Category:	MySQL for Windows: Installer	Severity:	S5 (Performance)
Version:	5.6.26	OS:	Windows (7)
Assigned to:		CPU Architecture:	Any

Description:
http://pastebin.com/DJTrvuv4 Every time I execute the installer from my computer, this error appears. I noticed that in C:\Users\[my username]\ProgramData\MySQL there was no .ini file, which might be relevant.

How to repeat:
Since I'm not sure what causes this error, I don't know how to repeat it.

I think I figured out what caused the issue - it must've been when I deleted C:\Program Files\MySQL 5.6 but didn't touch anything else.

Here's what I know happened. After the first install (which kept going awry), I deleted the Program Files folder and then tried reinstalling. I got an error saying that path1 had a null value. Four restarts and innumerable runs of msiexec's uninstaller (which deletes both folders) later, it still gives me the error.

Fixed now. All it was is that it was still installed as per Control Panel, and I was just uninstalling the installer. :P