[SR-Users] Problem using textops API

Hi, I'm trying to extend a Kamailio Module and need to add and remove headers in a SIP Message. To do this I want to use the textops module and I am importing the api and trying to bind the textops module. #include "../textops/api.h" [..] struct textops_binds tob; [..] /* register callbacks to TEXTOPS */ if (load_textops_api(&tob)!=0) { LM_ERR("can't load textops api. Is module textops loaded?\n"); return -1; } Later I use tob.append_hf to add a header field. Everything compiles fine but on Kamailio startup there is a Error Message: [..] 0(21782) DEBUG: <core> [route_struct.c:166]: ACTION_#25 #0/2: 9(9)/ (nil) 0(21782) DEBUG: <core> [route_struct.c:166]: ACTION_#25 #1/2: 3(3)/ (nil) 0(21782) DEBUG: <core> [sr_module.c:625]: find_export_record: found <is_method> in module textops [/usr/lib/kamailio/modules_k/textops.so] 0(21782) DEBUG: <core> [route_struct.c:166]: ACTION_#25 #0/2: 9(9)/ (nil) 0(21782) DEBUG: <core> [route_struct.c:166]: ACTION_#25 #1/2: 3(3)/ (nil) 0(21782) DEBUG: <core> [sr_module.c:625]: find_export_record: found <is_method> in module textops [/usr/lib/kamailio/modules_k/textops.so] 0(21782) DEBUG: <core> [route_struct.c:166]: ACTION_#25 #0/2: 9(9)/ (nil) 0(21782) DEBUG: <core> [route_struct.c:166]: ACTION_#25 #1/2: 3(3)/ (nil) [..] 0(21784) DEBUG: <core> [sr_module.c:625]: find_export_record: found <t_release> in module tm [/usr/lib/kamailio/modules/tm.so] 0(21784) DEBUG: <core> [sr_module.c:631]: find_export_record: <load_textops> not found 0(21784) ERROR: siptrace [../../modules_k/textops/api.h:63]: Failed to import load_textops 0(21784) ERROR: siptrace [siptrace.c:314]: can't load textops api. Is module textops loaded? 0(21784) ERROR: <core> [sr_module.c:875]: init_mod(): Error while initializing module siptrace (/usr/lib/kamailio/modules_k/siptrace.so) ERROR: error while initializing modules 0(21784) DEBUG: tm [t_funcs.c:122]: DEBUG: tm_shutdown : start 0(21784) DEBUG: tm [t_funcs.c:125]: DEBUG: tm_shutdown : emptying hash table [..] I am running Kamailio 3.1.4. Is this a bug in Kamailio or am I doing anything wrong in my approach to use textops? Kind regards, Timo Klecker