Prepare data for WAT: cannot read files (version incompatibility?)

[Guilherme]

Hello, everyone,

 

I’m having trouble trying to run “Prepare data for WAT” inside Wasp Engineering 4.0.

It is returning me the error message below:

 “Exception report produced at 2025-04-10 11:54:40

 Local exception: This file can be read by version 02.01.0001 compatible readers or laterThis reader can read only up to version 01.02.0004 files. raised at: 2025-04-10 11:54:25

               2025-04-10 11:54:25: Message added: Incompatible format version

               2025-04-10 11:54:25: Exception raised in: Rvea0182:cGwcFileFilter:AssertFileFormatIsReadable

               2025-04-10 11:54:25: Message added: Could not load a wind climate from a string of XML

               2025-04-10 11:54:25: Exception raised in: Rvea0182:cGwcFileFilter:LoadAtlasFromXML

               2025-04-10 11:54:25: Message added: Could not load a wind atlas from file

               2025-04-10 11:54:25: Exception raised in: Rvea0182:cGwcFileFilter:LoadAtlasFromFile

               2025-04-10 11:54:25: Message added: Could not restore a wind atlas from file

               2025-04-10 11:54:25: Exception raised in: Rvea0182:cObservedWindClimate:RestoreFromFile

               2025-04-10 11:54:25: Message added: Could not insert a Generalised wind climate to the hierarchy

               2025-04-10 11:54:25: Exception raised in: Rvea0176:cHierarchyInsertionFromFile:InsertFromFile

               2025-04-10 11:54:25: Message added: Failed to initialise wasp project

               2025-04-10 11:54:25: Exception raised in: WAsP Engineering:fWAT:SetupWaspProject

               2025-04-10 11:54:25: Message added: A problem occurred before the calculations were completed

               2025-04-10 11:54:25: Exception raised in: WAsP Engineering:fWAT:DoWork

               Latest thread started in: WAsP Engineering: fWAT:ButtonOK_Click

(…)”

 

Does someone know what could be wrong?

I generated the .gwc and .wtg files (the inputs) in WASP 11. Could it be something related to this?

The other only difference is that I changed the map (its size and roughness).

Before that it was running OK. It started giving me this message after I updated WASP using "WAsPSuite-2025-A-12.exe."

Thank you,

Guilherme.

[Morten]

WAT needs a mixture of results from WAsP and WAsP Engineering, so the Prepare data for WAT tool asks for additional input files. 

We added some improvements to the WAsP model, which required an update of the GWC file format. This is the reason why the current software distributed by WAsPSuite-2025-A-12 has problems reading the GWC file produced by WAsP 11.  

The way to proceed is to generate a new GWC file by WAsP 12, which is included in WAsPSuite-2025-A-12. I think you can open the original WAsP 11 workspace file (WWH) by WAsP 12, recalculate the GWC object, and then save that in the new file format.  If I remember incorrectly, or if you simply lost the WAsP 11 workspace file, you will need to construct the workspace by WAsP 12 using an observed mean wind climate (OMWC) file.