xml comments error out

[tlavalle]

with the comment i have by aero systems. it keeps erroring out on that line. does FG read comments different or am i adding them wrong?

<?xml version="1.0" encoding="iso-8859-1"?>

<root version="0.1">
	<properties>
		<name>Achtung! Cthulhu</name>
		<version>1</version>
		
		<author>TonyL</author>
		<description>Skills for Achtung Cthulhu.</description>

    <exclusiongroup>Achtung</exclusiongroup>

    <ruleset>
			<name>CallOfCthulhu</name>
			<minrelease>1</minrelease>
		</ruleset>
	</properties>

	<base>
		<script name="erainit">
      local name = "Achtung";
      local skills = {
        ["Accounting"] = { base=10}, 
        ["Aero Systems"] = { base=1}, <!-- Added 06/26/2017 -->
        ["Anthropology"] = { base=1},
        ["Archaeology"] = { base=1},
        ["Art"] = { sublabeling=true,  base=5},
        ["Astronomy"] = { base=1},
        ["Bargain"] = { base=5},
        ["Biology"] = { base=1},
        ["Chemistry"] = { base=1},
        ["Climb"] = { base=40},

[Trenloe]

Because that section of the code is within a <script> tag, FG is running it as LUA. <!-- Added 06/26/2017 --> is not valid LUA. But, as it is also set within XML there are further requirements to use comments.

See the "Using scripts" section here: https://www.fantasygrounds.com/modguide/scripting.xcp In particular this line: The "--[[ ]]" comment syntax must be used instead of the "--" syntax

So use --[[Added 06/26/2017]]

But, you really should put scripts like this in their own .lua file. It's easier to debug, easier to comment code, etc..

[LordEntrails]

Hmm, I always put comments on their own line, but I don't know if that is needed. Your formatting is correct. Try removing or moving the comment to see if you still get an error on that line number.
EDIT: Doh! Ninja'd by the AI with the correct answer!