[SRILM]: lattice-tool: problems while reading word-mesh

[Nicola Bertoldi]

Hello,
I've been recently started to use lattice-tool
and I got first problems in reading word-meshes.

In particular, if I run this 2 commands
(i.e. first create a word-mesh and read it)
lattice-tool -read-htk -in-lattice input.slf -write-mesh output.cn
lattice-tool -read-mesh -in-lattice output.cn

I got this error message:
lattice-tool: 
/hardmnt/voxgate/ssi/HermesTools/srilm/include/LHash.cc:251: Boolean 
LHash<KeyT, DataT>::locate(KeyT, unsigned int&) const [with KeyT = 
NodeIndex, DataT = LatticeNode]: Assertion `!Map_noKeyP(key)' failed.
Abort


Who can help me?

best regards
and thanks in advance,
Nicola