convert_proto_tree_add_text.pl is not generating any output file

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Hi,

i am trying to migrate one plugin from wireshark 1.12.8 to wireshark 2.6.3 the existing packet-xxx.c file has prototreeadd_item() API calls which are removed from 2.6.3.

i do observe a tool convertprototreeaddtext.pl and tried to run it as mentioned below,

./convert_proto_tree_add_text.pl --action=generate --encoding=ENC_LITTLE_ENDIAN packet-fapi.c
./convert_proto_tree_add_text.pl --action=fix-all --encoding=ENC_LITTLE_ENDIAN packet-fapi.c

output:

root@epc:~/raju/wireshark-wireshark-2.6.3/tools# ./convert_proto_tree_add_text.pl --action=generate --encoding=ENC_LITTLE_ENDIAN packet-fapi.c
root@epc:~/raju/wireshark-wireshark-2.6.3/tools#./convert_proto_tree_add_text.pl --action=fix-all --encoding=ENC_LITTLE_ENDIAN packet-fapi.c
Couldn't open packet-fapi.c.proto_tree_input at ./convert_proto_tree_add_text.pl line 201.

it seems step1 is not generated any output file which is input for step2.

can you please let me know how to overcome this issue??

Thanks, Raju