Yesod and Persistent cause compiler panic
Hello,
This is my first bug report for GHC, so excuse me if I don't have all the formatting correct, and please tell me how to correct it!
I am working on a yesod app, and upon running cabal run, I got this message:
Preprocessing executable 'creative-index-org' for creative-index-org-0.0.0...
[1 of 1] Compiling Main ( Main.hs, dist/build/creative-index-org/creative-index-org-tmp/Main.o )
<no location info>: error:
ghc: panic! (the 'impossible' happened)
(GHC version 8.0.2 for x86_64-unknown-linux):
initTc: unsolved constraints
WC {wc_insol = [W] person_aodw :: t_aodv[tau:1] (CHoleCan: person)}
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
I have attached Main.hs, the cabal file, and a nix-shell file (in case you use nix) that contains the environment I was running this in.
Trac metadata
Trac field | Value |
---|---|
Version | 8.0.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
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Blocking | |
CC | |
Operating system | |
Architecture |