# Pybombs installed 3.7.7.1 instead of 3.7.8 **URL:** \ **Category:** GNU Radio\ **Created:** [June 4, 2015, 5:23pm UTC](https://www.ruby-forum.com/t/pybombs-installed-3-7-7-1-instead-of-3-7-8/242211 "2015-06-04T17:23:19Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Post date:** [June 4, 2015, 5:23pm UTC](https://www.ruby-forum.com/t/pybombs-installed-3-7-7-1-instead-of-3-7-8/242211/1 "2015-06-04T17:23:19Z")
Hello all, Yesterday I did a gnuradio update (./pybombs update) and noticed my version went back a minor version. I had been using 3.7.8 and now I’m using 3.7.7.1. I’ve created flowgraphs using 3.7.8 that are not working with 3.7.7.1. I don’t get any debug information, I click the play button and it sits there and then exits with code -8. I’m wondering what happened. I know I didn’t do anything special to get 3.7.8, but now I’d like to get it back. Can someone advise me on how to do this. Thanks, Rich ---
**Author:** ![reback](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b5ac83/32.png) [@reback](https://www.ruby-forum.com/u/reback)\ **Post date:** [June 4, 2015, 5:52pm UTC](https://www.ruby-forum.com/t/pybombs-installed-3-7-7-1-instead-of-3-7-8/242211/2 "2015-06-04T17:52:31Z")
Hey Richard, On 04.06.2015 08:21, Richard B. wrote: > Hello all, > > Yesterday I did a gnuradio update (./pybombs update) and noticed my > version went back a minor version. I had been using 3.7.8 and now I’m > using 3.7.7.1. I’m suspecting a drift in the space-time continuum. Or did you enter a blue box by any chance that was bigger on the inside than on the outside? 😃 Sci-fi aside, 3.7.8 is not yet released, but our master branch is versioned 3.7.8git (more precisely: v3.7.7.1-131-g71ab508d / 3.7.8git). > I’ve created flowgraphs using 3.7.8 that are not working with 3.7.7.1. I > don’t get any debug information, I click the play button and it sits > there and then exits with code -8. This might be this again: [http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#My-application-segfaults-immediately-It-used-to-work-and-I-didnt-change-it-What-the](http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#My-application-segfaults-immediately-It-used-to-work-and-I-didnt-change-it-What-the) > I’m wondering what happened. I know I didn’t do anything special to get > 3.7.8, but now I’d like to get it back. Can someone advise me on how to > do this. Install latest HEAD from master. M ---
**Author:** ![reback](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b5ac83/32.png) [@reback](https://www.ruby-forum.com/u/reback)\ **Post date:** [June 4, 2015, 6:18pm UTC](https://www.ruby-forum.com/t/pybombs-installed-3-7-7-1-instead-of-3-7-8/242211/3 "2015-06-04T18:18:49Z")
I can’t explain how it happened Martin. I can not comment on the blue box, they won’t let me… Joking aside, I don’t know how it happened. Prior to yesterday, with GRC open, when I went to help-\>about it told me I was using 3.7.8. I’ve had access to things like the new correlation estimator block and modulate vector block, which I understand are 3.7.8 toys from previous mailing list conversations I’ve had. Correct me if I’m wrong. Now help-\>about shows 3.7.7.1. Pybombs handles the typical problems the link you posted addresses, like compile order and re-compiling in general. It uninstalled both uhd and gnuradio and then re-installed them both. Older flowgraphs work, but the ones using modulate vector and correlation estimator don’t. I do have some custom blocks in those flowgraphs, would I need to re-build all custom blocks after an update? Is it possible pybombs pointed to 3.7.8 by mistake for a day or two at some point, which happened to be when I last updated? How would I tell pybombs to install master HEAD, or are you recommending a git pull on gnuradio directly? Rich ---
**Author:** ![reback](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b5ac83/32.png) [@reback](https://www.ruby-forum.com/u/reback)\ **Post date:** [June 4, 2015, 6:59pm UTC](https://www.ruby-forum.com/t/pybombs-installed-3-7-7-1-instead-of-3-7-8/242211/4 "2015-06-04T18:59:07Z")
On 04.06.2015 09:17, Richard B. wrote: > Pybombs handles the typical problems the link you posted addresses, like > compile order and re-compiling in general. It uninstalled both uhd and > gnuradio and then re-installed them both. Older flowgraphs work, but the > ones using modulate vector and correlation estimator don’t. I do have > some custom blocks in those flowgraphs, would I need to re-build all > custom blocks after an update? You might not, but if ABI breaks, things go bad. > Is it possible pybombs pointed to 3.7.8 by mistake for a day or two at > some point, which happened to be when I last updated? How would I tell > pybombs to install master HEAD, or are you recommending a git pull on > gnuradio directly? Maybe…? I don’t know. Anyway, I suggest since you’re getting into GR development and all that you simply build by hand the branch you need (i.e. master) and you should be fine. Cheers, Martin