Run Failure: "Sequence contains no elements"

[bwmiller]

I’ve been running through the example scenarios in Exercise 10 of the ST-Sim course handbook using resampled versions of the original raster data (i.e., I reduced the cell size/increased the resolution of the original data). This has not been a problem for any scenarios except for the restoration of large patch edges scenario. When I try to run this scenario with the resampled data I receive the run failure message “sequence contains no elements.” I tried converting the input rasters from float to integer format (with multiple different values for “NO_DATA”), but got the same result. The scenario runs fine with the original raster resolution.

The problem seems to be related to the cell size. Any ideas?

Thanks in advance!

[leonardo-frid]

Hi Brian,

 

This is a known bug in version 1.4 of ST-Sim associated with prioritizing large patche edges for transitions when area targets are used.  The crash is incosistent and does not always occur; but it does often.  It will be fixed in the upcoming version (1.5) of ST-Sim.  We hope to get a release out by early November.

 

Regards,

Leonardo

[bwmiller]

Hi Leonardo,

Thanks for the reply. I’ll watch for the release of the new version!

Cheers,
Brian

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