Hi, I am a beginner to pjsip, when making the project, I find this error. # Build ffmpeg using make make[1]: Entering directory `/cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg' /cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg /cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg /cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg/x264_src /cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg /cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg Build in --cross-prefix=/cygdrive/e/android-ndk-r6//toolchains/arm-linux-androideabi-4.4.3/prebuilt/cygwin_nt-6.1-x86/bin/arm-linux-androideabi- --enable-pic --host=arm-linux --enable-static --disable-cli --sysroot=/cygdrive/e/android-ndk-r6//platforms/android-9/arch-arm --prefix=/cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg/build/x264/armeabi --extra-cflags="" --extra-ldflags="" No working C compiler found. make[2]: Entering directory `/cygdrive/e/C/csipsimple/csipsimple/CSipSimple/jni/ffmpeg/x264_src' Makefile:3: config.mak: No such file or directory ./configure Found no assembler Minimum version is yasm-1.0.0 If you really want to compile without asm, configure with --disable-asm. make[2]: *** [config.mak] Error 1 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120510/5966520d/attachment.html>