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There are a number of problems that can prevent analysis or optimization from running successfully. The most common reasons for failed runs are improperly defined load cases.
Optimization Error #157

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View the glossary, frequently asked questions, and errors and alerts.
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- Errors and Alerts
  Altair Inspire checks for potential problems with the model before running an analysis or optimization and will suggest solutions when problems are found.
  - Inspire Errors and Alerts
    There are a number of problems that can prevent analysis or optimization from running successfully. The most common reasons for failed runs are improperly defined load cases.
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Optimization Error #157

Condition

In some cases you may encounter Optimization Error #157 when running a model.

Cause

This is caused by a conflict between your anti-virus software and Inspire.

Remedy

Change your Run History Path to a folder that is not actively monitored by your anti-virus software (e.g. C:\tmp). The Run History Path can be changed from the File > Preferences window under Optimization.
Set the environment variable OS_TMP_DIR to a directory that is not actively monitored by your anti-virus software (e.g. C:\tmp). Environment variables can be set from the System entry in the Windows Control Panel.