Ansyswbuexe Encountered A Problem A Diagnostic File Has Been Written New |verified| 〈UPDATED × 2026〉

Paths that are too long (over 248 characters) or contain special characters (like degrees "°" or local language symbols). Resource Interference:

Unassigned or inaccessible Scratch Solver environment file paths inside user options.

: Broken paths between CAD software (like SpaceClaim or SolidWorks) and the Workbench. Step-by-Step Fixes for the AnsysWBU.exe Error

If these steps don't work, the issue may be a corrupted installation. In that case, a full uninstall followed by a clean reinstall (ensuring all leftover folders in Program Files are deleted) is the final nuclear option.

The error message indicates a critical crash within the ANSYS Mechanical or Workbench user interface module ( AnsysWBU.exe ). This fatal exception immediately halts your simulation workflow and dumps an error log into a local .dmp file—typically located in your Windows temporary directories ( %TEMP%\AnsysWBDumpFile.dmp ). Paths that are too long (over 248 characters)

Contact support if:

References and further reading

Follow these steps in order to resolve the ansyswbuexe crash. 1. Update Graphics Card Drivers

Windows operating system updates can easily break old user preference profiles. Clearing them forces Workbench to generate factory-fresh settings. Step-by-Step Fixes for the AnsysWBU

When Ansys Workbench (ansyswbuexe) crashes or aborts, it often writes a diagnostic file (log, crash dump, or .log/.diag file). That file records error details (stack trace, module names, environment info) to help identify whether the problem is caused by corrupted project files, licensing, graphics/driver issues, insufficient resources, or a software bug.

. If it’s blank, manually select a local folder with plenty of space. Ansys Innovation Space 4. Environment Variable Fix

The following troubleshooting steps are organized roughly from simplest to most complex.

Understanding and Resolving "ansyswbuexe encountered a problem a diagnostic file has been written" How to Utilize the Diagnostic File

If GPU acceleration (via NVIDIA CUDA or OpenCL) is enabled, and the GPU drivers are mismatched, memory on the device can become corrupted. The solver will eventually try to copy results back to host memory, encounter a parity error, and abort.

If Ansys cannot find a valid place to write temporary files, it will crash immediately upon solving or opening a model. Ansys Innovation Space In Mechanical, go to File > Options Analysis Settings and Solution Analysis Data Management Scratch Solver Files Directory

If the installation is corrupted, it can cause frequent crashes. Go to > Programs and Features . Locate the Ansys installation. Right-click and select Uninstall/Change > Repair . How to Utilize the Diagnostic File