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ERR File - What is an .err file and how do I open it?
Learn about .ERR files and view a list of programs that open them.
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Overview
What is an ERR file? An ERR file is a text file that contains error messages generated by a program. It is typically written as a program loads, executes, or closes and is often used by software developers when testing or profiling programs.
More Information Since programs often print to standard "out" and standard "err" streams when run, a developer may choose to redirect this output to a log.out file for normal output and log.err for error output. Both files may be appended rather than overwritten between runs of the program so that the history is maintained over successive runs.
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DeveloperMicrosoft
Popularity2.9 | 15 Votes
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.ERR File Extension
3 file types use the .err file extension.
Error Log File
| Developer | N/A |
| Popularity |
3.5 | 44 Votes |
What is an ERR file?
An ERR file is a text file that contains error messages generated by a program. It is typically written as a program loads, executes, or closes and is often used by software developers when testing or profiling programs.
More Information
Since programs often print to standard "out" and standard "err" streams when run, a developer may choose to redirect this output to a log.out file for normal output and log.err for error output. Both files may be appended rather than overwritten between runs of the program so that the history is maintained over successive runs.
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Programs that open ERR files
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Platform
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Windows
Microsoft Notepad
Included with OS
Other text editor
Mac
Apple TextEdit
Included with OS
Other text editor
Linux
Vim
Free
GNU Emacs
Free
Other text editor
Category: Text Files
Updated: November 30, 2018
AutoCAD Error Log File
| Developer | Autodesk |
| Popularity |
3.7 | 14 Votes |
Application log file generated by AutoCAD, a CAD application used by engineers for creating 3D designs; contains information related to a program crash; may include the error text, date and time the error occurred, and the name of the drawing that was opened when the program unexpectedly quit; used for diagnosing and troubleshooting application problems.
More Information
AutoCAD application errors, such as Fatal Errors and Internal Errors, are stored in the file acad.err .
Programs that open or reference ERR files
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Autodesk AutoCAD 2025
Free Trial
Category: Misc Files
Updated: September 8, 2010
Visual FoxPro Compilation Error File
| Developer | Microsoft |
| Popularity |
2.9 | 15 Votes |
An ERR file may also be created by Microsoft Visual FoxPro when errors occur during the compilation of a database application. It contains a list of any issues encountered, such as syntax errors, missing files, or other problems that prevent the application from compiling successfully. ERR files help developers identify and resolve errors in their code.
More Information
Developers often review ERR files to correct specific errors to ensure the application runs smoothly. They are not a part of the final application distribution but a helpful resource during the development and debugging process.
NOTE: The last version of Visual FoxPro was 9.0, which Microsoft published in 2007.
Programs that open ERR files
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Microsoft Visual FoxPro
—
Discontinued
Paid
Category: Developer Files
Updated: September 17, 2024