«cabal install» fails

[Hi-Angel]

The build fails with

[75 of 79] Compiling NN.CLI           ( NN/CLI.hs, dist/dist-sandbox-f1ec6f88/build/NN/CLI.o )                              

NN/CLI.hs:38:1:                                                                                                             
    Ambiguous occurrence ‘makeLenses’                                                                                       
    It could refer to either ‘Control.Lens.makeLenses’,                                                                     
                             imported from ‘Control.Lens’ at NN/CLI.hs:5:1-53                                               
                             (and originally defined in ‘Control.Lens.TH’)                                                  
                          or ‘P.makeLenses’,                                                                                
                             imported from ‘Text.ProtocolBuffers’ at NN/CLI.hs:18:1-43                                      
                             (and originally defined in ‘Text.ProtocolBuffers.Reflections’)                                 
Failed to install caffegraph-0.1.0.2                                                                                        
cabal: Error: some packages failed to install:                                                                              
caffegraph-0.1.0.2 failed during the building phase. The exception was:
ExitFailure 1

I tried to use stack too for some packages, so I actually have that CLI.hs built already in my .stack-work directory. So I tried to trick it with

cp .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/NN/CLI.* dist/dist-sandbox-f1ec6f88/build/NN/

But it didn't work, it still trying to compile the file, like it didn't see it is already built ☹

[Hi-Angel]

Yay, I fixed this!

[Hi-Angel]

/me is going through a backlog of old unmerged PRs on my account, and I found I shouldn't have closed this issue as the according PR was never merged. Sorry for potential confusion, reopening