# V052. A critical error had occurred.

The V052 message warns about a critical analyzer error. It is most likely that some source files will not be analyzed.

To get additional information about this error, examine the analyzer report file (`plog`) and the standard output stream of error messages (`stderr`), if you use the command-line version.

If you use the Visual Studio IDE or a standalone PVS-Studio application, the error stack is displayed in the PVS-Studio window. It is also recorded at the very beginning of the `plog` file. At the same time, the stack is divided into substrings, and each of them is recorded and displayed as an individual, unnumbered error.

If you work from the command line, you can analyze the return code of the command-line version to determine whether an exception occurred, and then examine the `plog` file without opening it in the Visual Studio IDE or the standalone application. For this purpose, the report can be converted—for example, into a text file—using the `PlogConverter` utility. Return codes of the command-line version are described in the section "Analyzing Visual Studio / MSBuild / .NET projects from the command line using PVS-Studio." Information about the `PlogConverter` utility can be found in the section "How to view and convert analyzer's results (SARIF, HTML, and other formats)."

Although V052 appears rather seldom, we would appreciate your help in identifying the issue that caused it. To do it, please send us the exception stack from the PVS-Studio output window, or the message from `stderr` if you use the command-line version, via the feedback form.