Re: Error message in fm_rx and fm_tx example

[Marcus Müller]

Dear Kuan-Lin,

Yes, git will tell you these are identical. ( git diff maint-3.9 master
gr-analog/examples/fm_?x.grc )

Wiiild guess: Is it possible you had a previous version of GNU Radio installed 
before? in
that case, please delete ~/.cache/gnuradio/ and restart GRC.

Best regards,
Marcus

On 08.04.21 05:39, Clark Chiu wrote:
> 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 <mueller@kit.edu 
> <mailto:mueller@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
>