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Can't get back to previous configuration. #464

Closed dschalk closed 9 years ago

dschalk commented 9 years ago

I tried stack and couldn't make it work so I removed the .stack directory and everything stack in my application directory. I even brought back my latest Github update to make sure. When I enter 'cabal configure, I get this: d@D:~/websockets-react$ cabal configure Resolving dependencies... Configuring websockets-react-0.1.0.0... Warning: This package indirectly depends on multiple versions of the same package. This is highly likely to cause a compile failure. package aeson-0.8.0.2 requires mtl-2.1.3.1 package websockets-0.9.5.0 requires mtl-2.2.1 package resourcet-1.1.5 requires mtl-2.2.1 package exceptions-0.8.0.2 requires mtl-2.2.1 package conduit-1.2.4.2 requires mtl-2.2.1 package conduit-extra-1.1.9 requires primitive-0.5.4.0 package vector-0.10.12.3 requires primitive-0.6 package primitive-0.6 requires transformers-0.3.0.0 package mtl-2.1.3.1 requires transformers-0.3.0.0 package wai-websockets-3.0.0.5 requires transformers-0.4.2.0 package wai-extra-3.0.7.1 requires transformers-0.4.2.0 package wai-app-static-3.1.0 requires transformers-0.4.2.0 package transformers-compat-0.4.0.4 requires transformers-0.4.2.0 package transformers-base-0.4.4 requires transformers-0.4.2.0 package streaming-commons-0.1.12.1 requires transformers-0.4.2.0 package resourcet-1.1.5 requires transformers-0.4.2.0 package optparse-applicative-0.11.0.2 requires transformers-0.4.2.0 package mtl-2.2.1 requires transformers-0.4.2.0 package monad-control-1.0.0.4 requires transformers-0.4.2.0 package mmorph-1.0.4 requires transformers-0.4.2.0 package exceptions-0.8.0.2 requires transformers-0.4.2.0 package cryptohash-conduit-0.1.1 requires transformers-0.4.2.0 package conduit-extra-1.1.9 requires transformers-0.4.2.0 package conduit-1.2.4.2 requires transformers-0.4.2.0 package websockets-react-0.1.0.0 requires transformers-0.4.3.0 d@D:~/websockets-react$ When I enter 'runghc Main', I get this: Main.hs:15:18: Could not find module ‘Network.Wai.Handler.WebSockets’ Use -v to see a list of the files searched for.

Main.hs:16:18: Could not find module ‘Network.Wai.Application.Static’ Use -v to see a list of the files searched for. d@D:~/websockets-react$ When I then enter 'cabal install wai-websockets', I get: Resolving dependencies... All the requested packages are already installed: wai-websockets-3.0.0.5 Use --reinstall if you want to reinstall anyway. d@D:~/websockets-react$ Reinstalling doesn't help. The command 'cabal build' causes my processor to go bananas until I can't stand it and enter 'CTR-c'. My next stop will probably be to remove Cabal and reinstalling it, but don't see why that would work. By the way, I have been using Hackage. I ran cabal update during all of this and it seemed to install things rather than report that all is up to date.

drwebb commented 9 years ago

Hi, let me see if I can help. First of all, stack and cabal can coexist, and stack doesn't overwrite anything of cabal's. So if you are experiencing a breakage, it would not be caused by removing ~/.stack or ./.stack-work.

It looks like you are facing the dreaded diamond dependency problem that is one of the reasons we created stack. I'm curious what problems you had with stack, perhaps we could diagnose that and get you going. Otherwise it's probably good idea to consider nuking your cabal package databases to fix your build problems. There are plenty of guides on the internet that can help you with that.

dschalk commented 9 years ago

Update: Wow. Your response was fast. I tried re-installing cabal-install and got: bash-completion changelog ghc-pkg-stage2.list Setup tests bootstrap.sh dist LICENSE Setup.hi cabal-install.cabal Distribution Main.hs Setup.hs cbits ghc-pkg.list README.md Setup.o d@D:~/cabal-install-1.22.6.0$ ./bootstrap.sh Using gcc for C compiler. If this is not what you want, set CC. Using /usr/lib/gcc/x86_64-linux-gnu/4.8/collect2 instead. Checking installed packages for ghc-7.8.4... WARNING: there are broken packages. Run 'ghc-pkg check' for more details. deepseq is already installed and the version is ok. binary is already installed and the version is ok. time is already installed and the version is ok. Cabal is already installed and the version is ok. transformers is already installed and the version is ok. mtl is already installed and the version is ok. text is already installed and the version is ok. parsec is already installed and the version is ok. network is already installed and the version is ok. old-locale is already installed and the version is ok. old-time is already installed and the version is ok. HTTP is already installed and the version is ok. zlib is already installed and the version is ok. random is already installed and the version is ok. stm is already installed and the version is ok. WARNING: there are broken packages. Run 'ghc-pkg check' for more details. network-uri is already installed and the version is ok. cleaning... [1 of 1] Compiling Main ( Setup.hs, Setup.o ) [Distribution.Simple changed] Linking Setup ... Configuring cabal-install-1.22.6.0... Warning: This package indirectly depends on multiple versions of the same package. This is highly likely to cause a compile failure. package parsec-3.1.9 requires mtl-2.1.3.1 package HTTP-4000.2.19 requires mtl-2.1.3.1 package cabal-install-1.22.6.0 requires mtl-2.2.1 package mtl-2.1.3.1 requires transformers-0.3.0.0 package mtl-2.2.1 requires transformers-0.4.3.0 Building cabal-install-1.22.6.0... Preprocessing executable 'cabal' for cabal-install-1.22.6.0...

Distribution/Client/BuildReports/Upload.hs:17:8: Could not find module ‘Network.TCP’ There are files missing in the ‘HTTP-4000.2.19’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/Compat/Semaphore.hs:10:8: Could not find module ‘Control.Concurrent.STM’ There are files missing in the ‘stm-2.4.4’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/Dependency/Modular/Validate.hs:10:8: Could not find module ‘Control.Monad.Reader’ There are files missing in the ‘mtl-2.2.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/GZipUtils.hs:20:8: Could not find module ‘Codec.Compression.GZip’ There are files missing in the ‘zlib-0.5.4.2’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/GZipUtils.hs:21:8: Could not find module ‘Codec.Compression.Zlib.Internal’ There are files missing in the ‘zlib-0.5.4.2’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/HttpUtils.hs:13:8: Could not find module ‘Network.HTTP’ There are files missing in the ‘HTTP-4000.2.19’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/HttpUtils.hs:16:8: Could not find module ‘Network.HTTP.Proxy’ There are files missing in the ‘HTTP-4000.2.19’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/HttpUtils.hs:19:8: Could not find module ‘Network.Browser’ There are files missing in the ‘HTTP-4000.2.19’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/HttpUtils.hs:22:8: Could not find module ‘Network.Stream’ There are files missing in the ‘HTTP-4000.2.19’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/Types.hs:37:8: Could not find module ‘Network.URI’ There are files missing in the ‘network-uri-2.6.0.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Distribution/Client/Upload.hs:31:8: Could not find module ‘System.Random’ There are files missing in the ‘random-1.1’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for.

Error during cabal-install bootstrap: Building the cabal-install package failed.

Is this what you suggested I try, or did I misunderstand you. I'm inclined to reinstall GHC now. Do you know if version 7.10.1 is considered stable?

The problem with stack was the old 'cabal hell' problem of dependencies which couldn't be resolved.

drwebb commented 9 years ago

This isn't really a forum for support on cabal install, but if you want to take it from the top we can try to get you running with stack. That would be:

1) Download the Stack binary and put it in your $PATH 2) Run stack setup 3) Go to your project directory and run stack init and stack build 4) Report any errors here by with the details of the command by running stack <command> --verbose and tell us your version with stack --version

Also, it looks like you are using a module from wai-app-static but you are trying to install wai-websockets.

dschalk commented 9 years ago

I think the message said I needed both, so I didn't try wai-app-static after wai-websockets failed.

Maybe my troubles stem from installing stack from the Github repo. I am working in an Ubuntu-14.04 box. Where can I find an Ubuntu/Debian binary, or do I need to compile it?

ketzacoatl commented 9 years ago

@dschalk Ubuntu install instructions can be found here: https://github.com/commercialhaskell/stack/wiki/Downloads#ubuntu

dschalk commented 9 years ago

Thanks.

dschalk commented 9 years ago

Back in cabal hell again. I'm using Stackage. I installed GHC-7.10.1 and reinstalled Cabal and cabal-install. Here's what I get: d@D:~/websockets-react$ cabal configure Resolving dependencies... Configuring server-0.2.0.0... cabal: At least the following dependencies are missing: wai-app-static -any, wai-websockets -any, websockets -any d@D:~/websockets-react$ cabal install wai-app-static Resolving dependencies... cabal: Could not resolve dependencies: trying: wai-app-static-3.0.1.1 (user goal) trying: cryptohash-conduit-0.1.1 (dependency of wai-app-static-3.0.1.1) trying: conduit-extra-1.1.9 (dependency of cryptohash-conduit-0.1.1) trying: streaming-commons-0.1.12.1/installed-464... (dependency of conduit-extra-1.1.9) trying: transformers-base-0.4.4 (dependency of conduit-extra-1.1.9) trying: transformers-compat-0.4.0.3 (dependency of transformers-base-0.4.4) trying: transformers-compat-0.4.0.3:-two rejecting: transformers-compat-0.4.0.3:+three (conflict: streaming-commons => transformers==0.4.2.0/installed-c1a..., transformers-compat-0.4.0.3:three => transformers>=0.3 && <0.4) rejecting: transformers-compat-0.4.0.3:-three (manual flag can only be changed explicitly) Dependency tree exhaustively searched. d@D:~/websockets-react$ This situation arose when I tried to use stack, so it is worth noting here. I wish I could tell you exactly what I did. I thought I was following instructions. I'm going to try stack again. Cabal doesn't work for me anymore.

ketzacoatl commented 9 years ago

@dschalk, can you open a clone a clean checkout of your code to a new working directory, then follow @drwebb's instructions above? If you run into a problem with those instructions, please copy / paste the output from each command in that sequence with stack. Thank you!

drwebb commented 9 years ago

@dschalk: You keep saying that you are using stack, but I haven't been able to verify you running a single stack command. As I said, this is not a cabal-install support forum. Could you give us the output of stack --version and stack build --verbose? Otherwise, I will have to close this as off topic.

dschalk commented 9 years ago

Must I use GHC-7.8.4 in my project. I have 7.10.1. Anyway, here is what I have so far: d@D:~$ stack --version Version 0.1.1.0, Git revision 2cac22d2a26dab6faa00c6f03edf5798affb7840 d@D:~$ cd websockets-react d@D:~/websockets-react$ ls client Logger2.hs score2.backup websockets-react.shabal dist log.txt Setup.hs Fm.hs Main.hs Setup.hs.save0 LICENSE README.md websockets-react.cabal d@D:~/websockets-react$ ls dist build package.conf.inplace setup-config d@D:~/websockets-react$ ls client Logger2.hs score2.backup websockets-react.shabal dist log.txt Setup.hs Fm.hs Main.hs Setup.hs.save0 LICENSE README.md websockets-react.cabal d@D:~/websockets-react$ rm *shabal d@D:~/websockets-react$ rm -R dist d@D:~/websockets-react$ ls client Logger2.hs README.md Setup.hs.save0 Fm.hs log.txt score2.backup websockets-react.cabal LICENSE Main.hs Setup.hs d@D:~/websockets-react$ stack build Unable to find a stack.yaml file in the current directory (/home/d/websockets-react/) or its ancestors Recommended action: stack init d@D:~/websockets-react$ stack init Writing default config file to: /home/d/websockets-react/stack.yaml Basing on cabal files:

Downloaded lts-2.16 build plan.
Caching build plan Fetched package index.
Populated index cache. Checking against build plan lts-2.16 Selected resolver: lts-2.16 Wrote project config to: /home/d/websockets-react/stack.yaml d@D:~/websockets-react$ ls client LICENSE log.txt README.md Setup.hs stack.yaml Fm.hs Logger2.hs Main.hs score2.backup Setup.hs.save0 websockets-react.cabal d@D:~/websockets-react$ runghc Main

Fm.hs:6:8: Could not find module ‘Data.Aeson’ Perhaps you meant Data.Version (from base-4.8.0.0) Use -v to see a list of the files searched for.

Main.hs:9:8: Could not find module ‘Network.WebSockets.Connection’ Use -v to see a list of the files searched for.

Main.hs:12:18: Could not find module ‘Network.WebSockets’ Perhaps you meant Network.Socket (from network-2.6.2.0@netwo_Bdsn6Y1VKLa3MCczwSV70J) Use -v to see a list of the files searched for.

Main.hs:15:18: Could not find module ‘Network.Wai.Handler.WebSockets’ Perhaps you meant Network.Wai.Handler.Warp.Date Network.Wai.Handler.Warp.Recv Network.Wai.Handler.Warp.Types Use -v to see a list of the files searched for.

Main.hs:16:18: Could not find module ‘Network.Wai.Application.Static’ Use -v to see a list of the files searched for. d@D:~/websockets-react$ stack install aeson GHC version mismatched, found 7.10.1 (x86_64), but expected version 7.8.4 (x86_64) (based on resolver setting in /home/d/websockets-react/stack.yaml). Try running stack setup d@D:~/websockets-react$ stack install websockets GHC version mismatched, found 7.10.1 (x86_64), but expected version 7.8.4 (x86_64) (based on resolver setting in /home/d/websockets-react/stack.yaml). Try running stack setup d@D:~/websockets-react$ subl stack.yaml d@D:~/websockets-react$ ls -a . client .git Logger2.hs Main.hs score2.backup Setup.hs.save0 websockets-react.cabal .. Fm.hs LICENSE log.txt README.md Setup.hs stack.yaml d@D:~/websockets-react$ stack install wai-websockets GHC version mismatched, found 7.10.1 (x86_64), but expected version 7.8.4 (x86_64) (based on resolver setting in /home/d/websockets-react/stack.yaml). Try running stack setup d@D:~/websockets-react$ stack setup Preparing to download ghc-7.8.4 ...FailedConnectionException "www.haskell.org" 443 d@D:~/websockets-react$ stack setup Preparing to download ghc-7.8.4 ...FailedConnectionException "www.haskell.org" 443 d@D:~/websockets-react$

dschalk commented 9 years ago

sudo stack setup still gave the 443 error message but after I entered sudo -i and returned to the project directory, stack setup worked.

dschalk commented 9 years ago

OOps. In the end I got: Caching build plan Fetched package index.
Populated index cache. Preparing to download ghc-7.8.4 ...FailedConnectionException "www.haskell.org" 443

drwebb commented 9 years ago

It looks like you are on GHC 7.10 already, so try rm stack.yaml, and then stack init --prefer-nightly followed by a stack build

dschalk commented 9 years ago

d@D:~$ cabal install websockets Resolving dependencies... cabal: Could not resolve dependencies: next goal: websockets (user goal) rejecting: websockets-0.9.5.0 (global constraint requires ==0.9.3.1) Dependency tree exhaustively searched. d@D:~$ cabal list websockets

The Stackage version is 0.9.5.3. I suspect that stack somehow imposed the global constraint requiring ==0.9.3.1. What do you think?

ketzacoatl commented 9 years ago

@dschalk, we aren't able to help in debugging issues with cabal, but you ought to be able to see success with:

rm stack.yaml
stack init --prefer-nightly
stack build
radix commented 9 years ago

@dschalk You shouldn't be using sudo with stack, by the way. It does everything within your home directory.

(Makes me wonder if stack ought to error out if it detects it's running as root...)

snoyberg commented 9 years ago

I'm at an airport on my phone, so not the most amenable place for good comments. That said, I'm seeing three different things combined in this issue:

In general, when things get conflated, it's harder for people to assist. I'd recommend opening new, targeted issues as necessary and closing this one.

@radix The sudo thing may be worth pursuing, can you similarly open that up in a separate issue for discussion?

radix commented 9 years ago

@snoyberg You got it: #471

snoyberg commented 9 years ago

The network issues are being tracked in #483. Better documentation for getting started with a cabal-oriented mindset are at #489. With those covered, I'm going to close this.