Dear Rafael Donato, As per your suggestion I downloaded fresh Pjproject 1.2 from pjsip website. Then I extracted the package and ran ./configure, make dep, make clean, make commands without any error. Once the build process is completed I tested the sample application under the path ../pjproject-1.2/pjsip-apps directory successfully. But while compiling my application the same error occurs. Any suggestions? Note: To compile my application I'm using 'gcc', since I've faced lot of problem with make file. I modified the sample make file mentioned in the website with no success. Even I went through the "GNU Make" documentation and created my own make file, but no success. So I go for g++ with -idirafter option as mentioned below. Incase If you have a make file which is working fine, please forward it to me. [root at hdesk4 myproject]# g++ -idirafter /usr/src/linux/pjproject-1.2/pjlib/include -idirafter /usr/src/linux/pjproject-1.2/pjlib-util/include -idirafter /usr/src/linux/pjproject-1.2/pjmedia/include -idirafter /usr/src/linux/pjproject-1.2/pjsip/include -idirafter /usr/src/linux/pjproject-1.2/pjnath/include -o myapp2.cpp-v myapp2.cpp /tmp/ccaYaO7j.o: In function `error_exit(char const*, int)': myapp2.cpp:(.text+0x8e): undefined reference to `pjsua_perror' myapp2.cpp:(.text+0x93): undefined reference to `pjsua_destroy' /tmp/ccaYaO7j.o: In function `main': myapp2.cpp:(.text+0xc2): undefined reference to `pjsua_create' myapp2.cpp:(.text+0xf9): undefined reference to `pjsua_destroy' collect2: ld returned 1 exit status Thanks & Regards, - Senthil From: pjsip-bounces@xxxxxxxxxxxxxxx [mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of Rafael Donato Sent: Thursday, May 07, 2009 10:05 PM To: pjsip list Subject: Re: FW: Error while calling PJSUA API This is quite strange. It must be something missing on your steps. Try to run make clean, or redo the steps described in tutorial. Perhaps it could be better to follow the detailed statements given by the full tutorial, just bellow the Quick Info. By the way, just a dumb question: Did you run ./configure ? Rafael Donato Engenheiro de Software Senthil wrote: Dear Rafael Donato, Any update on this issue? Thanks & Regards, - Senthil -----Original Message----- From: senthil@xxxxxxxxxxxxxxxx [mailto:senthil at gotouchpoint.com] Sent: Thursday, May 07, 2009 7:49 PM To: rloureiro at lightcomm.com.br Subject: RE: Error while calling PJSUA API Dear Rafael Donato, First of all thanks for your note. Actually I've already build PJSUA as mentioned in "Getting Started" tutorial (i.e.) by running "make dep" and "make". Do I need to build pjsua-lib seperately? If yes please let me know the steps to build PJSUA-LIB. Anticipating your reply. Thanks & Regards, - Senthil From: Rafael Donato [mailto:rloureiro@xxxxxxxxxxxxxxxx] Sent: Thursday, May 07, 2009 7:33 PM To: senthil at gotouchpoint.com; pjsip list Subject: Re: Error while calling PJSUA API Hi, pjsua_perror is defined in PJSIP/pjsip/src/pjsua-lib. Have you already built pjsua-lib? Best regards, Rafael Donato Engenheiro de Software senthil at gotouchpoint.com wrote: Dear All, I'm trying to call PJSUA APIs to create and destroy a session, but while compiling my application I'm receiving the following error. Code snippet attached. Can anybody tell me whether I'm missing anything? /tmp/ccltDfSK.o: In function `error_exit(char const*, int)': myapp2.cpp:(.text+0x8e): undefined reference to `pjsua_perror' myapp2.cpp:(.text+0x93): undefined reference to `pjsua_destroy' /tmp/ccltDfSK.o: In function `main': myapp2.cpp:(.text+0xc2): undefined reference to `pjsua_create' myapp2.cpp:(.text+0xf9): undefined reference to `pjsua_destroy' collect2: ld returned 1 exit status Thanks & Regards, - Senthil -------------------------------------------------------------------- mail2web.com - What can On Demand Business Solutions do for you? http://link.mail2web.com/Business/SharePoint _____ _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org -------------------------------------------------------------------- mail2web.com - What can On Demand Business Solutions do for you? http://link.mail2web.com/Business/SharePoint _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org -------------------------------------------------------------------- mail2web.com ? 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