<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://community.appian.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>KB-1735 Reports fail to render with "com.appiancorp.kougar.driver.exceptions.Signal: index" error observed in the application server log after upgrading to 18.2 or 18.3</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3</link><description /><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>KB-1735 Reports fail to render with "com.appiancorp.kougar.driver.exceptions.Signal: index" error observed in the application server log after upgrading to 18.2 or 18.3</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3</link><pubDate>Wed, 03 Oct 2018 21:37:41 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Jordan Horwat</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Current Revision posted to Appian Knowledge Base by Jordan Horwat on 10/3/2018 9:37:41 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2 or 18.3 with the following error observed in the application server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;INFO [stdout] (ajp-/0.0.0.0:8009-1670) [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exceptions.Signal: index
INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, fixed issues, upgrade, infrastructure, hotfix&lt;/div&gt;
</description></item><item><title>DRAFT KB-XXXX Reports fail to render with "Signal: index" error observed in the application-server log after upgrading to 18.2</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3/revision/1</link><pubDate>Wed, 03 Oct 2018 20:50:34 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Tejas Kargutkar</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Revision 1 posted to Appian Knowledge Base by Tejas Kargutkar on 10/3/2018 8:50:34 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2/18.3 with the following error observed in the application-server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;15:41:28,750 INFO [stdout] (ajp-/0.0.0.0:8009-1670) 2018-09-28 15:41:28,749 [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exception
s.Signal: index
15:41:28,750 INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, upgrade, hotfix&lt;/div&gt;
</description></item><item><title>DRAFT KB-XXXX Reports fail to render with "Signal: index" error observed in the application-server log after upgrading to 18.2 or 18.3</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3/revision/7</link><pubDate>Wed, 03 Oct 2018 17:35:43 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Jordan Horwat</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Revision 7 posted to Appian Knowledge Base by Jordan Horwat on 10/3/2018 5:35:43 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2 or 18.3 with the following error observed in the application server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;INFO [stdout] (ajp-/0.0.0.0:8009-1670) [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exceptions.Signal: index
INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, fixed issues, upgrade, infrastructure, hotfix&lt;/div&gt;
</description></item><item><title>DRAFT KB-XXXX Reports fail to render with "Signal: index" error observed in the application-server log after upgrading to 18.2 or 18.3</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3/revision/6</link><pubDate>Wed, 03 Oct 2018 17:20:23 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Tejas Kargutkar</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Revision 6 posted to Appian Knowledge Base by Tejas Kargutkar on 10/3/2018 5:20:23 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2 or 18.3 with the following error observed in the application server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;INFO [stdout] (ajp-/0.0.0.0:8009-1670) [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exception
s.Signal: index
INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, fixed issues, upgrade, infrastructure, hotfix&lt;/div&gt;
</description></item><item><title>DRAFT KB-XXXX Reports fail to render with "Signal: index" error observed in the application-server log after upgrading to 18.2 or 18.3</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3/revision/5</link><pubDate>Wed, 03 Oct 2018 17:20:00 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Tejas Kargutkar</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Revision 5 posted to Appian Knowledge Base by Tejas Kargutkar on 10/3/2018 5:20:00 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2 or 18.3 with the following error observed in the application server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;INFO [stdout] (ajp-/0.0.0.0:8009-1670) 2018-09-28 15:41:28,749 [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exception
s.Signal: index
INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, fixed issues, upgrade, infrastructure, hotfix&lt;/div&gt;
</description></item><item><title>DRAFT KB-XXXX Reports fail to render with "Signal: index" error observed in the application-server log after upgrading to 18.2/18.3</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3/revision/4</link><pubDate>Wed, 03 Oct 2018 17:19:12 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Tejas Kargutkar</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Revision 4 posted to Appian Knowledge Base by Tejas Kargutkar on 10/3/2018 5:19:12 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2 or 18.3 with the following error observed in the application server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;INFO [stdout] (ajp-/0.0.0.0:8009-1670) 2018-09-28 15:41:28,749 [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exception
s.Signal: index
INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, fixed issues, upgrade, infrastructure, hotfix&lt;/div&gt;
</description></item><item><title>DRAFT KB-XXXX Reports fail to render with "Signal: index" error observed in the application-server log after upgrading to 18.2</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3/revision/3</link><pubDate>Wed, 03 Oct 2018 17:14:06 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Jordan Horwat</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Revision 3 posted to Appian Knowledge Base by Jordan Horwat on 10/3/2018 5:14:06 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2 or 18.3 with the following error observed in the application server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;15:41:28,750 INFO [stdout] (ajp-/0.0.0.0:8009-1670) 2018-09-28 15:41:28,749 [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exception
s.Signal: index
15:41:28,750 INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, fixed issues, upgrade, infrastructure, hotfix&lt;/div&gt;
</description></item><item><title>DRAFT KB-XXXX Reports fail to render with "Signal: index" error observed in the application-server log after upgrading to 18.2</title><link>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3/revision/2</link><pubDate>Wed, 03 Oct 2018 16:52:13 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:bf7b36ed-91bc-42c9-8442-a52a9966324c</guid><dc:creator>Tejas Kargutkar</dc:creator><comments>https://community.appian.com/support/w/kb/1165/kb-1735-reports-fail-to-render-with-com-appiancorp-kougar-driver-exceptions-signal-index-error-observed-in-the-application-server-log-after-upgrading-to-18-2-or-18-3#comments</comments><description>Revision 2 posted to Appian Knowledge Base by Tejas Kargutkar on 10/3/2018 4:52:13 PM&lt;br /&gt;
&lt;h2&gt;Symptoms&lt;/h2&gt;
&lt;p&gt;Reports fail to render after upgrading to 18.2/18.3 with the following error observed in the application-server log:&lt;/p&gt;
&lt;pre class="code-java"&gt;15:41:28,750 INFO [stdout] (ajp-/0.0.0.0:8009-1670) 2018-09-28 15:41:28,749 [ajp-/0.0.0.0:8009-1670] ERROR com.atlassian.plugin.servlet.ServletModuleContainerServlet - com.appiancorp.kougar.driver.exception
s.Signal: index
15:41:28,750 INFO [stdout] (ajp-/0.0.0.0:8009-1670) javax.servlet.ServletException: com.appiancorp.kougar.driver.exceptions.Signal: index&lt;/pre&gt;
&lt;h2&gt;Cause&lt;/h2&gt;
&lt;p&gt;This issue has been addressed via&amp;nbsp;&lt;strong&gt;AN-113321&lt;/strong&gt;&amp;nbsp;in the following Appian hotfixes/versions:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.2/Hotfixes.html" target="_blank"&gt;Appian 18.2 Hotfix Package&amp;nbsp;E&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href="https://docs.appian.com/suite/help/18.3/Hotfixes.html" target="_blank"&gt;Appian 18.3&amp;nbsp;Hotfix Package&amp;nbsp;B&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2&gt;Action&lt;/h2&gt;
&lt;p&gt;Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.&amp;nbsp;&lt;/p&gt;
&lt;h2&gt;Affected Versions&lt;/h2&gt;
&lt;p&gt;This article applies to Appian&amp;nbsp;18.2 and 18.3.&lt;/p&gt;
&lt;div class="content"&gt;
&lt;p&gt;Last Reviewed: October 2018&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: known issues, reports, fixed issues, upgrade, infrastructure, hotfix&lt;/div&gt;
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