Hi Marcus, I am using 3.9 for the GNU Radio. I ran the example from the latest master branch of github. I see from the CHANGELOG.md it should be the same 3.9 right? Thanks.
Best regards, Kuan-lin On Wed, Apr 7, 2021 at 7:12 PM Marcus Müller <muel...@kit.edu> wrote: > Hi Clark, > > which version of GNU Radio are you using, and is the folder from which > you're taking these > examples from the same version? > > Thank you for your answer! > Marcus > > On 07.04.21 23:35, Clark Chiu wrote: > > Hello, > > > > I am new to GNU Radio and I am trying to understand more by checking the > fm_rx and fm_tx > > examples in the gnuradio/gr-analog/examples folder. I open these two grc > files from the > > GNU Radio Companion. Out of box, there is an error message in Polyphase > Arbitrary > > Resampler saying Expression None is invalid for type `real_vector` of > parameter `Taps`. I > > tried to google around the forum and the internet but I couldn't find > anything useful to > > fix this. I doubt it has something to do with the last parameter > "window.WIN_KAISER" but I > > am not sure. > > > > Could anyone give me some pointers? > > Thank you in advance. > > > > > > Best regards, > > Clark > >
