Re: [Geiser-users] Help associating source and REPL - "No prompt found!"

[Jon Miller]

address@hidden writes:

> Hi Jon,
>
> On Wed, Nov 13 2013, Jon Miller wrote:
>
>> Hello Geiser folks,
>>
>> I've just installed Geiser last evening and plan on using it while
>> working through the SICP book with folks from work. Loving it so
>> far. The other thing I'm trying to do is to incorporate it with
>> literate notes within a org-mode file[1]. I'm having problems getting
>> a geiser REPL running and communicating with that from my org file.
>>
>> I believe I've narrowed down the problem to a problem associating my
>> source file with the geiser REPL. With a plain scheme file
>> example.rkt, I have the example code: (define (cube x) (* x x x))
>>
>> When I run M-x run-geiser, it will start a REPL and split my window
>> but I'll get a message in the minibuffer "No prompt found!" In my
>> *Messages* buffer, I'm seeing the following:
>> geiser-repl--wait-for-prompt: No prompt found!
>
> That typically happens when the scheme interpreter version is not the
> right one.  What versions of Racket and Geiser are you using? You can
> also try M-x run-racket to make sure that you're starting Racket.
I get the same behavior with M-x run-racket. (I've set
geiser-active-implementations to '(racket) to avoid guile).

Version of Racket is: v5.3.6. I installed it directly from the Racket website
to my Fedora 18 machine.
M-x geiser-version says 0.5. I installed it via an el-get recipe which looks
like it does a git clone from git://git.sv.gnu.org/geiser.git.

>> I've tried playing with various values for geiser-repl-startup-time
>> from the smallest 1000 to the largest value of 20000. Same result each
>> time.
>>
>> I later try M-x scheme-send-definition as well as M-x
>> scheme-send-region and the simple cube definition never makes it's way
>> to my REPL.
>
> No, those functions are not part of Geiser, and you shouldn't be using
> them (they're part of the standar emacs support for scheme that Geiser
> supersedes, and won't work for a REPL started by Geiser).  Once you get
> Geiser up and running, there are replacements for them that you can use.
Okay, I'll be careful about which I use. Atleast, C-x C-e is bound to
geiser-eval-last-sexp but again once I run that after a definition, I get
"geiser-repl--connection: No Geiser REPL for this buffer (try M-x
run-geiser)" in *Messages*. Each time I run M-x run-geiser, I keep getting a
separate REPL instantiated.

>> So, I'm hopefully providing enough information and you can see why I
>> might be concluding a communication and/or problem properly launching
>> the Geiser REPL is likely my root problem. Any suggestions?
>
> That seems to be the problem, yes.  But i don't know how ob-scheme.el
> works, so i'm not totally sure.  At any rate, if you cannot start a
> Geiser REPL, it's almost for sure *not* ob-scheme's fault.
I think we can ignore ob-scheme for now since I suspect if I can solve the
basic scheme source <--> REPL problem, I suspect I can figure out the org
file setup on my own.

Is there a debug level I can set within Geiser? Or would you recommend I step
through with Edebug? (still kind of a novice there)

-- 
Jon Miller