KB-2102 "An error occurred while retrieving the report" thrown when accessing process reports

This issue has been resolved in an Appian hotfix/new Appian version. Please apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.

Symptoms

The following error is seen when accessing process reports:

An error occurred while retrieving the report.

The corresponding error message is seen in the application server log:

ERROR com.appiancorp.process.analytics2.display.ProcessAnalyticsReportData - com .appiancorp.kougar.mapper.exceptions.ReturnException: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang .String unable to convert <[collection class]> of type <class java.util.Arrays$ArrayList> to type <class com.appiancorp.process.analytics2.service.ReportResultPageRows>

Cause

This issue has been addressed via AN-135990 in the following hotfixes/versions:

Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.

Affected Versions

This article applies to Appian 18.1 to 19.2.

Last Reviewed: April 2020

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