Windows 8 Compatibility Issues

If you are a Windows 8 user and you are having trouble getting HEC-RAS Version 5.0 beta to work, Window's Program Compatibility Troubleshooter may solve the problem.  Problems usually arise when pressing the compute button.  One common message that pops up is "Error starting process.
Steady file not found."  The Program Compatibility Troubleshooter will fix this.

In Windows 8, you can get to the Program Compatibility Troubleshooter and learn how to use it for HEC-RAS by following the instructions here:
 http://windows.microsoft.com/en-us/windows-8/older-programs-compatible-version-windows

Sediment Transport Quasi Unsteady Flow Editor Flow Series Error

Written by Chris Goodell, P.E., D.WRE  |  WEST Consultants
Copyright © The RAS Solution 2014.  All rights reserved.
“Flow or Temp time series date is not sufficient to run requested time window.”  This one has been around for a while, but it just showed up again on the Facebook HEC-RAS User’s Group, so I thought I’d show the fix(es) here.  This applies to the new beta version of 5.0, as well as previous versions of HEC-RAS that can run sediment transport. 
When running a sediment transport model, if this error message pops up, there are at least three possible reasons.

1.  Make sure you have both flow AND temperature time series data. 

HEC-RAS Version 5.0 beta Issue with HDF5 Viewer

Written by Christopher Goodell, P.E., D.WRE  |  WEST Consultants
Copyright © The RAS Solution 2014.  All rights reserved.

 

A few testers have discovered a dll conflict when trying to open the new 5.0 beta version of HEC-RAS.  The following message appears:

This happens if you’ve installed the HDF5 Viewer as described in the new “Combined 1D and 2D Modeling with HEC-RAS” document on page 115. 

HDF5 is a new file format used by HEC-RAS to store 2D output as well as some 1D output (in addition to the standard output files and dss files).  The HDF5 file contains more output information than is currently available in the HEC-RAS graphics and tables, such as velocity information for cell faces and face points.  The HDF5 Viewer is currently the only way for users to access the 2D velocity output. 

The issue is resolved by uninstalling the HDF5 Viewer.  HEC will be posting an updated install soon that corrects this problem.