﻿<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>Millisecond Forums » Millisecond Forums » Inquisit 6  » Unknown system error. File IQKey.cpp</title><generator>InstantForum 2017-1 Final</generator><description>Millisecond Forums</description><link>https://forums.millisecond.com/</link><webMaster>Millisecond Forums</webMaster><lastBuildDate>Fri, 01 May 2026 21:22:32 GMT</lastBuildDate><ttl>20</ttl><item><title>RE: Unknown system error. File IQKey.cpp</title><link>https://forums.millisecond.com/Topic36213.aspx</link><description>&lt;blockquote data-id="36212" class="if-quote-wrapper" unselectable="on" data-guid="1715285168595" contenteditable="false" id="if_insertedNode_1715285168104"&gt;&lt;a class="quote-para" unselectable="on" style="display: none;" href="#" data-id="36212" title="Move Cursor Below" contenteditable="false"&gt;&lt;span unselectable="on"&gt;+&lt;/span&gt;&lt;/a&gt;&lt;a class="quote-delete" unselectable="on" style="display: none;" href="#" data-id="36212" title="Delete Quote" contenteditable="false"&gt;&lt;span unselectable="on"&gt;x&lt;/span&gt;&lt;/a&gt;&lt;span unselectable="on" class="quote-markup"&gt;[quote]&lt;/span&gt;&lt;div unselectable="on" class="if-quote-header" contenteditable="false"&gt;&lt;div unselectable="on" class="if-quote-toggle-wrapper"&gt;&lt;a class="if-quote-toggle quote-link" href="#" data-id="36212" title=" "&gt;&amp;nbsp;&lt;/a&gt;&lt;/div&gt;&lt;span unselectable="on" class="quote-markup"&gt;[b]&lt;/span&gt;dinghu - 5/9/2024&lt;span unselectable="on" class="quote-markup"&gt;[/b]&lt;/span&gt;&lt;/div&gt;&lt;div class="if-quote-message if-quote-message-36212"&gt;&lt;div class="if-quote-message-margin" contenteditable="true"&gt;&lt;blockquote data-id="36211" class="if-quote-wrapper" unselectable="on" data-guid="1715285168595" contenteditable="false" id="if_insertedNode_1715278954542"&gt;&lt;a class="quote-para" unselectable="on" style="display: none;" href="#" data-id="36211" title="Move Cursor Below" contenteditable="false"&gt;&lt;span unselectable="on"&gt;+&lt;/span&gt;&lt;/a&gt;&lt;a class="quote-delete" unselectable="on" style="display: none;" href="#" data-id="36211" title="Delete Quote" contenteditable="false"&gt;&lt;span unselectable="on"&gt;x&lt;/span&gt;&lt;/a&gt;&lt;span unselectable="on" class="quote-markup"&gt;[quote]&lt;/span&gt;&lt;div unselectable="on" class="if-quote-header" contenteditable="false"&gt;&lt;div unselectable="on" class="if-quote-toggle-wrapper"&gt;&lt;a class="if-quote-toggle quote-link" href="#" data-id="36211" title=" "&gt;&amp;nbsp;&lt;/a&gt;&lt;/div&gt;&lt;span unselectable="on" class="quote-markup"&gt;[b]&lt;/span&gt;dinghu - 5/9/2024&lt;span unselectable="on" class="quote-markup"&gt;[/b]&lt;/span&gt;&lt;/div&gt;&lt;div class="if-quote-message if-quote-message-36211"&gt;&lt;div class="if-quote-message-margin" contenteditable="true"&gt;Running my experiment, I am getting the following error:&amp;nbsp;Unknown system error. Line 353, File IQKey.cpp&lt;br/&gt;It doesn't seem to have caused any fatal malfunctions to the script, but I am not sure why it is happening. This error did not appear when I previously tested on my own, and it does not appear when validating my script, only as errors when running the program on Inquisit Web once the experiment went live. The code at line 353 is just this:&lt;br/&gt;[code]&lt;br/&gt;&amp;lt;picture mask&amp;gt;&lt;br/&gt;/ items = maskitems&lt;br/&gt;/ select = noreplace&lt;br/&gt;&amp;lt;/picture&amp;gt;&lt;br/&gt;[/code]&lt;br/&gt;Line 353 is the last line. From searching through the forum, I found someone else had a related issue, but theirs was an incorrect assignment of a /prevkey (0), which I have also noticed in my script. The only thing is, that error is nowhere near line 353, and that script is not interacting with the picture mask area. Can I simply delete the /prevkey (0) line? I do not actually need participants to be able to go back, so I am not sure why I had this typed up in the first place.&lt;br/&gt;&lt;br/&gt;&lt;a class="if-quote-goto quote-link" href="#" data-id="36211"&gt;&lt;span class="goto"&gt;&lt;/span&gt;&lt;/a&gt;&lt;/div&gt;&lt;/div&gt;&lt;span unselectable="on" class="quote-markup"&gt;[/quote]&lt;/span&gt;&lt;/blockquote&gt;&lt;br/&gt;I re-read the forum thread I found and realized that the answer was right there already. My bad, I overlooked that my question was already answered. Yes, deleting the /prevkey (0) line will fix the issue. And it did. A few more trials ran properly and threw up no errors.&lt;a class="if-quote-goto quote-link" href="#" data-id="36212"&gt;&lt;span class="goto"&gt;&lt;/span&gt;&lt;/a&gt;&lt;/div&gt;&lt;/div&gt;&lt;span unselectable="on" class="quote-markup"&gt;[/quote]&lt;/span&gt;&lt;/blockquote&gt;&lt;br/&gt;To clarify, the line number does not refer to your script. It's the line number in the source code component of the Inquisit engine throwing the error. Here, IQKey.cpp, the C++ source code file of the engine component handling all things related to key(board) input. You obviously don't have access to the Inquisit source code, so this information is primarily useful for us as developers to track down bugs in the engine itself or get an idea about what type of mistake may exist in a script that elicits an error (here: an invalid definition of an input key).&lt;br/&gt;</description><pubDate>Thu, 09 May 2024 20:13:56 GMT</pubDate><dc:creator>Dave</dc:creator></item><item><title>Unknown system error. File IQKey.cpp</title><link>https://forums.millisecond.com/Topic36211.aspx</link><description>Running my experiment, I am getting the following error:&amp;nbsp;Unknown system error. Line 353, File IQKey.cpp&lt;br/&gt;It doesn't seem to have caused any fatal malfunctions to the script, but I am not sure why it is happening. This error did not appear when I previously tested on my own, and it does not appear when validating my script, only as errors when running the program on Inquisit Web once the experiment went live. The code at line 353 is just this:&lt;br/&gt;[code]&lt;br/&gt;&amp;lt;picture mask&amp;gt;&lt;br/&gt;/ items = maskitems&lt;br/&gt;/ select = noreplace&lt;br/&gt;&amp;lt;/picture&amp;gt;&lt;br/&gt;[/code]&lt;br/&gt;Line 353 is the last line. From searching through the forum, I found someone else had a related issue, but theirs was an incorrect assignment of a /prevkey (0), which I have also noticed in my script. The only thing is, that error is nowhere near line 353, and that script is not interacting with the picture mask area. Can I simply delete the /prevkey (0) line? I do not actually need participants to be able to go back, so I am not sure why I had this typed up in the first place.&lt;br/&gt;&lt;br/&gt;</description><pubDate>Thu, 09 May 2024 20:08:37 GMT</pubDate><dc:creator>dinghu</dc:creator></item><item><title>RE: Unknown system error. File IQKey.cpp</title><link>https://forums.millisecond.com/Topic36212.aspx</link><description>&lt;blockquote data-id="36211" class="if-quote-wrapper" unselectable="on" data-guid="1715278956119" contenteditable="false" id="if_insertedNode_1715278954542"&gt;&lt;a class="quote-para" unselectable="on" style="display: none;" href="#" data-id="36211" title=""&gt;&lt;span unselectable="on"&gt;+&lt;/span&gt;&lt;/a&gt;&lt;a class="quote-delete" unselectable="on" style="display: none;" href="#" data-id="36211" title=""&gt;&lt;span unselectable="on"&gt;x&lt;/span&gt;&lt;/a&gt;&lt;span unselectable="on" class="quote-markup"&gt;[quote]&lt;/span&gt;&lt;div unselectable="on" class="if-quote-header"&gt;&lt;div unselectable="on" class="if-quote-toggle-wrapper"&gt;&lt;a class="if-quote-toggle quote-link" href="#" data-id="36211" title=" "&gt;&amp;nbsp;&lt;/a&gt;&lt;/div&gt;&lt;span unselectable="on" class="quote-markup"&gt;[b]&lt;/span&gt;dinghu - 5/9/2024&lt;span unselectable="on" class="quote-markup"&gt;[/b]&lt;/span&gt;&lt;/div&gt;&lt;div class="if-quote-message if-quote-message-36211"&gt;&lt;div class="if-quote-message-margin"&gt;Running my experiment, I am getting the following error:&amp;nbsp;Unknown system error. Line 353, File IQKey.cpp&lt;br/&gt;It doesn't seem to have caused any fatal malfunctions to the script, but I am not sure why it is happening. This error did not appear when I previously tested on my own, and it does not appear when validating my script, only as errors when running the program on Inquisit Web once the experiment went live. The code at line 353 is just this:&lt;br/&gt;[code]&lt;br/&gt;&amp;lt;picture mask&amp;gt;&lt;br/&gt;/ items = maskitems&lt;br/&gt;/ select = noreplace&lt;br/&gt;&amp;lt;/picture&amp;gt;&lt;br/&gt;[/code]&lt;br/&gt;Line 353 is the last line. From searching through the forum, I found someone else had a related issue, but theirs was an incorrect assignment of a /prevkey (0), which I have also noticed in my script. The only thing is, that error is nowhere near line 353, and that script is not interacting with the picture mask area. Can I simply delete the /prevkey (0) line? I do not actually need participants to be able to go back, so I am not sure why I had this typed up in the first place.&lt;br/&gt;&lt;br/&gt;&lt;a class="if-quote-goto quote-link" href="#" data-id="36211"&gt;&lt;span class="goto"&gt;&lt;/span&gt;&lt;/a&gt;&lt;/div&gt;&lt;/div&gt;&lt;span unselectable="on" class="quote-markup"&gt;[/quote]&lt;/span&gt;&lt;/blockquote&gt;&lt;br/&gt;I re-read the forum thread I found and realized that the answer was right there already. My bad, I overlooked that my question was already answered. Yes, deleting the /prevkey (0) line will fix the issue. And it did. A few more trials ran properly and threw up no errors.</description><pubDate>Thu, 09 May 2024 18:25:16 GMT</pubDate><dc:creator>dinghu</dc:creator></item></channel></rss>