[Haskell-beginners] Issue installing reactive-banana-5.0.0.1

[Miguel Negrao]

A 28/04/2012, às 15:50, Heinrich Apfelmus escreveu:

> Miguel Negrao wrote:
>> I had a try again at running the examples of reactive-banana-wx. I
>> unpacked reactive-banana-wx-0.5.0.0. I have installed wx and wxcore
>> version 0.13.1, that’s what I managed to install at some point (I
>> think there were some issue with OSX Lion on previous versions). So I
>> changed the cabal setup of reactive-banana-wx-0.5.0.0 to wx==0.13.1,
>> wxcore==0.13.1 and then did 'cabal install -fbuildExamples’ and
>> everything builds. Most of the examples run fine, although the resize
>> of the window is completely hacky, all the widgets assume strange
>> proportion and become almost unusable
>> (http://img440.imageshack.us/img440/1149/capturadeecr20120428s14.png)
>> . The asteroids app (which was the one I wanted to have  look at) the
>> window becomes just a couple pixels, so I can’t see anything
>> (http://img33.imageshack.us/img33/1149/capturadeecr20120428s14.png).
>> Is there a problem in using wx 0.13.1 ? Btw, wx 0.90 "Builds and runs
>> cleanly on 64 bit platforms (particularly MacOS X  Lion)”. Would
>> reactive-banana-wx work with wx0.9.0 ?
> 
> Ah, it looks like your version of  wx  got linked with wxWidgets 2.9.3 instead of wxWidgets 2.8 . This introduces various issues, in particular the ones you ran into.

Ah, ok, I did that by mistake, must have installed the wrong version of wxWidgets.
> 
> If you just want to try a few examples with wxWidgets 2.9.3, you can install reactive-banana-0.6.0.0 and the corresponding -wx packages from the master branch at
> 
> https://github.com/HeinrichApfelmus/reactive-banana
> 
> This should work with wx-0.90 (though some examples crash), but I can't give any guarantees whether the official 0.6 version that I'm going to release on hackage will have the exact same API.
> 
> That said, I'm basically just waiting for Jeremy to release a small patch to wx on hackage that fixes some of these issues (for instance the strangely minimized text entries and the crashes). After that, I'm going to release reactive-banana-0.6.0.0 that depends on wx-0.90.

Since I have wxWidgets 2.9.3 installed already I might as well give it a try with reactive-banana-0.6. I installed wx-0.90 and wxcore-0.90 and reactive-banana-0.6.0 (from git) without issues. I couldn’t install reactive-banana-wx though, I get this error:

Configuring MissingH-1.1.1.0...
Warning: This package indirectly depends on multiple versions of the same
package. This is highly likely to cause a compile failure.
package regex-base-0.93.2 requires mtl-2.0.1.0
package parsec-3.1.1 requires mtl-2.0.1.0
package parsec-3.1.1 requires mtl-2.1
package hslogger-1.1.5 requires mtl-2.1
package MissingH-1.1.1.0 requires mtl-2.1
package MissingH-1.1.1.0 requires parsec-3.1.1
package network-2.3.0.5 requires parsec-3.1.1
package mtl-2.0.1.0 requires transformers-0.2.2.0
package mtl-2.1 requires transformers-0.3.0.0
Preprocessing library MissingH-1.1.1.0...
Preprocessing executables for MissingH-1.1.1.0...
Building MissingH-1.1.1.0...
<command line>: cannot satisfy -package-id parsec-3.1.1-178bb186a8cbec1a8bf6b3192212c18e: 
   parsec-3.1.1-178bb186a8cbec1a8bf6b3192212c18e is shadowed by package parsec-3.1.1-fb91ea6e6c1f9c50292782ec985e5f9a
   (use -v for more information)
Updating documentation index
/Users/miguelnegrao/Library/Haskell/doc/index.html
cabal: Error: some packages failed to install:
MissingH-1.1.1.0 failed during the building phase. The exception was:
ExitFailure 1
cabal-macosx-0.2 depends on MissingH-1.1.1.0 which failed to install.
reactive-banana-wx-0.6.0.0 depends on MissingH-1.1.1.0 which failed to
install.

Thanks !
Miguel Negrão

ps: Does reactive-banana also have time functions like it is described in conal’s papers ? i.e. can I just animate something with a function like cos (t) or do I have to explicitly create timers myself ?
ps2: Sorry yet again for mailing you personally... I just can’t seem to remember that this list operates via cc and not reply...