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<p>I'm attempting to use v.lfp, after r.lfp appears to have run successfully, however I get this error. What might I be doing incorrectly?</p>
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<p>Thanks</p>
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<p>J</p>
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<div>Number of centroids: 0</div>
<div>Number of areas: 0</div>
<div>Number of isles: 0</div>
<div>v.edit complete.</div>
<div>WARNING: Unable to convert category string 'cat' (from 'cat') to category</div>
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<div>ERROR: Unable to get category list <cat></div>
<div>ERROR: Cannot delete short segments from the output vector map</div>
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