# Why the code in gnuradio in 3.6 cannot work in 3.7? **URL:** \ **Category:** GNU Radio\ **Created:** [October 11, 2013, 3:27pm UTC](https://www.ruby-forum.com/t/why-the-code-in-gnuradio-in-3-6-cannot-work-in-3-7/236927 "2013-10-11T15:27:14Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\ **Post date:** [October 11, 2013, 3:27pm UTC](https://www.ruby-forum.com/t/why-the-code-in-gnuradio-in-3-6-cannot-work-in-3-7/236927/1 "2013-10-11T15:27:14Z")
Hi guy, I have updated the gunradio to 3.7.1, but fond the c++ block name and style changed a litter bit. like ofdm\_insert\_preamble.cc is changed to ofdm\_instert\_preamble\_impl.cc. When I add some codes in general work funciton, and use the command \*make and make install \*it in build directory as usual in gnuradio 3.6, I cannot see any change after adding my personal code. I guess the build fire is not installed. what is happening in 3.7? Any help would be appreciated. Best, Kay ---
**Author:** ![Yingjie\_C](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/f14d63/32.png) [@Yingjie\_C](https://www.ruby-forum.com/u/Yingjie_C)\ **Post date:** [October 11, 2013, 5:03pm UTC](https://www.ruby-forum.com/t/why-the-code-in-gnuradio-in-3-6-cannot-work-in-3-7/236927/2 "2013-10-11T17:03:04Z")
Read [http://gnuradio.org/redmine/projects/gnuradio/wiki/Move\_3-6\_to\_3-7](http://gnuradio.org/redmine/projects/gnuradio/wiki/Move_3-6_to_3-7) MB On Fri, Oct 11, 2013 at 09:25:53PM +0800, Yingjie C. wrote: > Any help would be appreciated. > > Best, > > Kay > * * * > > Discuss-gnuradio mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio) – Karlsruhe Institute of Technology (KIT) Communications Engineering Lab (CEL) Dipl.-Ing. Martin B. Research Associate Kaiserstraße 12 Building 05.01 76131 Karlsruhe Phone: +49 721 608-43790 Fax: +49 721 608-46071 www.cel.kit.edu KIT – University of the State of Baden-Württemberg and National Laboratory of the Helmholtz Association ---
**Author:** ![Yingjie\_C](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/f14d63/32.png) [@Yingjie\_C](https://www.ruby-forum.com/u/Yingjie_C)\ **Post date:** [October 12, 2013, 7:48am UTC](https://www.ruby-forum.com/t/why-the-code-in-gnuradio-in-3-6-cannot-work-in-3-7/236927/3 "2013-10-12T07:48:39Z")
Thanks for your reply, Martin. I have read the website about the change before. But still nothing change when I run benchmark example in terminal, even though I delete some original code in C++ block(for test). That means my added code cannot take effect. Do I miss something? Best, Kay 2013/10/11 Martin B. (CEL) [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![Yingjie\_C](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/f14d63/32.png) [@Yingjie\_C](https://www.ruby-forum.com/u/Yingjie_C)\ **Post date:** [October 14, 2013, 10:14am UTC](https://www.ruby-forum.com/t/why-the-code-in-gnuradio-in-3-6-cannot-work-in-3-7/236927/4 "2013-10-14T10:14:59Z")
On Fri, Oct 11, 2013 at 10:47:27PM -0700, Yingjie C. wrote: > Thanks for your reply, Martin. I have read the website about the change before. > But still nothing change when I run benchmark example in terminal, even though > I delete some original code in C++ block(for test). That means my added code > cannot take effect. Do I miss something? Hard to say without knowing details. Probably yes. MB > ``` > Read http://gnuradio.org/redmine/projects/gnuradio/wiki/Move_3-6_to_3-7 > > changed a litter bit. like ofdm_insert_preamble.cc is changed to > > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > Building 05.01 > Discuss-gnuradio mailing list > removed_email_address@domain.invalid > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > ``` > * * * > > Discuss-gnuradio mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio) – Karlsruhe Institute of Technology (KIT) Communications Engineering Lab (CEL) Dipl.-Ing. Martin B. Research Associate Kaiserstraße 12 Building 05.01 76131 Karlsruhe Phone: +49 721 608-43790 Fax: +49 721 608-46071 www.cel.kit.edu KIT – University of the State of Baden-Württemberg and National Laboratory of the Helmholtz Association