make error

[chaitanyachavali]

I have successfully made a build for the project using cmake 3.10.2. Now when I try 'make', it throws an error.
Error log:
[ 1%] [FLEX][HeaderLexer] Building scanner with flex 2.6.0 [ 2%] [BISON][Parser] Building parser with bison 2.3 parser.ypp:3.9-24: syntax error, unexpected string, expecting = libwds/rtsp/CMakeFiles/wdsrtsp.dir/build.make:61: recipe for target 'libwds/rtsp/gen/parser.cpp' failed make[2]: *** [libwds/rtsp/gen/parser.cpp] Error 1 CMakeFiles/Makefile2:103: recipe for target 'libwds/rtsp/CMakeFiles/wdsrtsp.dir/all' failed make[1]: *** [libwds/rtsp/CMakeFiles/wdsrtsp.dir/all] Error 2 Makefile:140: recipe for target 'all' failed make: *** [all] Error 2
Any work around to solve this..?

[chaitanyachavali]

Update: I have update bison from 2.3 to 3.0.4. Now there is no parse error but when I try to 'make', it is not able to find parser.cpp at libwds/rtsp/gen and the execution stops.
Error log:
[ 1%] [FLEX][HeaderLexer] Building scanner with flex 2.6.0 [ 2%] [BISON][Parser] Building parser with bison 3.0.4 *** %n in writable segment detected *** libwds/rtsp/CMakeFiles/wdsrtsp.dir/build.make:61: recipe for target 'libwds/rtsp/gen/parser.cpp' failed make[2]: *** [libwds/rtsp/gen/parser.cpp] Error 141 CMakeFiles/Makefile2:103: recipe for target 'libwds/rtsp/CMakeFiles/wdsrtsp.dir/all' failed make[1]: *** [libwds/rtsp/CMakeFiles/wdsrtsp.dir/all] Error 2 Makefile:140: recipe for target 'all' failed make: *** [all] Error 2
Was it a build error ?. I searched the whole repo for this file which is not available, that means it is being generated. Am I missing something here for which it is not able to generate the file