Some questions about update_IT_lib.

Dear I-TASSER team:

When I tried to run generate_profile.pl for example pdb in update_IT_lib/pdb , there was worng with my update.
-------------------------------------------------------------------------------------------------------------------------------------------------------
Here is the command & the wrong information:
XXXXX@XXXXX:~/DesktopI-TASSER/I-TASSER4.2/update_IT_lib$ perl generate_profile.pl -blast ../blast/ -nrdir ../libdir/nr/ -pkgdir /home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/update_IT_lib -newdir ../libdirtest -PDBdir pdb -list list

1. Prepare list...
Number of templates in list: 2

2. Check PDB file...
Number of templates to be added: 2

3. Generate AAA.seq and AAA.sec...
4u65A
4u65E

4. Generate profiles for non-homologous chains...
DEP for 1/2, 4u65A
DEP for 2/2, 4u65E

MTX for 1/2, 4u65A
MTX for 2/2, 4u65E

CNT for 1/2, 4u65A
CNT for 2/2, 4u65E

SIG
/home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/update_IT_lib/sig: error while loading shared libraries: libg2c.so.0: cannot open shared object file: No such file or directory
chmod: cannot access `4u65A.sig': No such file or directory
mv: cannot stat `4u65A.sig': No such file or directory
chmod: cannot access `/home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/libdirtest/SIG/4u65A.sig': No such file or directory
chmod: cannot access `4u65E.sig': No such file or directory
mv: cannot stat `4u65E.sig': No such file or directory
chmod: cannot access `/home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/libdirtest/SIG/4u65E.sig': No such file or directory

dotProfile for 1/2, 4u65A
dotProfile for 2/2, 4u65E

stride for 1/2, 4u65A
stride for 2/2, 4u65E

5. AAA.*...

6 Check update...
checking library...
/home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/libdirtest/DEP/4u65A.dep missed
/home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/libdirtest/SIG/4u65A.sig missed
/home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/libdirtest/DEP/4u65E.dep missed
/home/XXXXX/Desktop/I-TASSER/I-TASSER4.2/libdirtest/SIG/4u65E.sig missed
Something is wrong with your update (see the information above)
Please re-run generate_profile.pl
quit
-------------------------------------------------------------------------------------------------------------------------
Why the DEP & SIG file can't be created?If the problam is clear,should I replace all the thing in the original libdir with the new libdir file(called libdirtest above)?
or,I should run add_profile_to_lib.pl?

Thanks!