Reports - A report contains summarized information from a data source, usually in an end-user-friendly format, such as PDF or Excel, although proprietary reporting tools usually with built-in design tools also exist.Error code - An error code is a value returned to provide context on why an error occurred.Crystal reports - Crystal Reports is a report writer that operates as a stand-alone report designer, an integrated part of Visual Studio, or part of SAP's Business Objects Enterprise suite.This is a work in progress, so sometimes we might define the word incorrectly, so feel free to skip this section! Here we list some definitions for the words contained in your error, in an attempt to help you understand your problem.