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Yi/FAQ

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(Installation: fmt)
(Installation: further fmt, monospace all program output)
Line 11: Line 11:
   
 
*Setup configure fails with
 
*Setup configure fails with
"Setup.hs: Package yi-0.3 can't be built on this system."
+
Setup.hs: Package yi-0.3 can't be built on this system.
 
:It means that you have no UI package available. You need VTY or GTK2hs installed. Get them from Hackage.
 
:It means that you have no UI package available. You need VTY or GTK2hs installed. Get them from Hackage.
   
Line 25: Line 25:
 
*ByteString problems: Yi as of 27 January 2008 cannot use the most recent ByteString library (because of the regexp libraries) which is 0.9.0.4 - it needs a version like 0.9 or 0.9.0.1. You may have the correct ByteString library installed, but still see an error like:
 
*ByteString problems: Yi as of 27 January 2008 cannot use the most recent ByteString library (because of the regexp libraries) which is 0.9.0.4 - it needs a version like 0.9 or 0.9.0.1. You may have the correct ByteString library installed, but still see an error like:
   
<blockquote>Yi/UI/Vty.hs:342:48:<br>
+
Yi/UI/Vty.hs:342:48:<br>
Couldn't match expected type<br> `bytestring-0.9.0.4:Data.ByteString.Internal.ByteString'<br>
+
Couldn't match expected type<br> `bytestring-0.9.0.4:Data.ByteString.Internal.ByteString'<br>
against inferred type `B.ByteString'<br>
+
against inferred type `B.ByteString'<br>
In the second argument of `renderBS', namely `(B.pack str)'<br>
+
In the second argument of `renderBS', namely `(B.pack str)'<br>
In the expression: renderBS (styleToAttr sty) (B.pack str)<br>
+
In the expression: renderBS (styleToAttr sty) (B.pack str)<br>
In the definition of `withStyle':<br>
+
In the definition of `withStyle':<br>
withStyle sty str = renderBS (styleToAttr sty) (B.pack str)</blockquote>
+
withStyle sty str = renderBS (styleToAttr sty) (B.pack str)
   
 
:This is because versions of ByteString often aren't compatible, and in this case, the VTY library was compiled with a different version.
 
:This is because versions of ByteString often aren't compatible, and in this case, the VTY library was compiled with a different version.
   
*I get "No instance for (RegexLike Regex B.ByteString)"
+
*I get
  +
No instance for (RegexLike Regex B.ByteString)
 
:It *could* be that the regex-instance in your ByteString package, there is only an instance for the newer regex-package. That is, your newly installed regex-posix-0.72.0.2 doesn't "see" the ByteString instance, because it was only defined for the regex-posix-0.93.1 package that ByteString knew about when it was built. This is yet another aspect of a known, tricky Cabal bug.
 
:It *could* be that the regex-instance in your ByteString package, there is only an instance for the newer regex-package. That is, your newly installed regex-posix-0.72.0.2 doesn't "see" the ByteString instance, because it was only defined for the regex-posix-0.93.1 package that ByteString knew about when it was built. This is yet another aspect of a known, tricky Cabal bug.
   

Revision as of 17:00, 4 February 2008

1 Installation

  • How do I install Yi?
get it from Hackage. Configure, compile and install Yi as you would do for any other Cabal package.
  • Setup.hs does not compile!
You need to use Cabal version 1.2.3. To make sure you use it, do:
   ghc -package Cabal-1.2.3.0 --make Setup.hs
   ./Setup configure ...
  • Setup configure fails with
Setup.hs: Package yi-0.3 can't be built on this system.
It means that you have no UI package available. You need VTY or GTK2hs installed. Get them from Hackage.
  • On Mac OS X if you get an error message similar to this:
yi: can't load .so/.DLL for: gthread-2.0 (dlopen(libgthread-2.0.dylib, 10): image not found)
then your dynamic library search path variable is probably not set correctly. You can set it (in Bash) using:
export DYLD_LIBRARY_PATH=/opt/local/lib
(Adjust the specific path to your system. You can find the right location using locate libgthread)
  • ByteString problems: Yi as of 27 January 2008 cannot use the most recent ByteString library (because of the regexp libraries) which is 0.9.0.4 - it needs a version like 0.9 or 0.9.0.1. You may have the correct ByteString library installed, but still see an error like:
Yi/UI/Vty.hs:342:48:
Couldn't match expected type
`bytestring-0.9.0.4:Data.ByteString.Internal.ByteString'
against inferred type `B.ByteString'
In the second argument of `renderBS', namely `(B.pack str)'
In the expression: renderBS (styleToAttr sty) (B.pack str)
In the definition of `withStyle':
withStyle sty str = renderBS (styleToAttr sty) (B.pack str)
This is because versions of ByteString often aren't compatible, and in this case, the VTY library was compiled with a different version.
  • I get
No instance for (RegexLike Regex B.ByteString)
It *could* be that the regex-instance in your ByteString package, there is only an instance for the newer regex-package. That is, your newly installed regex-posix-0.72.0.2 doesn't "see" the ByteString instance, because it was only defined for the regex-posix-0.93.1 package that ByteString knew about when it was built. This is yet another aspect of a known, tricky Cabal bug.

2 Configuration

3 Usage