Altro errore stack

Using configuration file: stack.yaml
Using cabal packages:
- reddit-bot.cabal

Using resolver: lts-7.1
Using compiler: ghc-8.0.1
Asking cabal to calculate a build plan...
Trying with packages from lts-7.1 and 1 external packages as hard constraints...
Attempt failed.

>>>> Cabal errors begin
cabal: Could not resolve dependencies:
rejecting: reddit-bot-0.1.0.0:!test (constraint from config file, command line
flag, or user target requires opposite flag selection)
trying: reddit-bot-0.1.0.0:*test
next goal: mysql-simple (dependency of reddit-bot-0.1.0.0:*test)
rejecting: mysql-simple-0.2.2.5, mysql-simple-0.2.2.4, mysql-simple-0.2.2.3,
mysql-simple-0.2.2.2, mysql-simple-0.2.2.1, mysql-simple-0.2.2.0,
mysql-simple-0.2.1.2, mysql-simple-0.2.1.1, mysql-simple-0.2.1.0,
mysql-simple-0.2.0.2, mysql-simple-0.2.0.1, mysql-simple-0.2.0.0,
mysql-simple-0.1.0.1, mysql-simple-0.1.0.0 (constraint from main config
/tmp/cabal-solver8501/cabal.config requires ==0.4.0.0)
Dependency tree exhaustively searched.
<<<< Cabal errors end

Could not parse cabal-install errors:

>>>> Cabal errors begin
cabal: Could not resolve dependencies:
rejecting: reddit-bot-0.1.0.0:!test (constraint from config file, command line
flag, or user target requires opposite flag selection)
trying: reddit-bot-0.1.0.0:*test
next goal: mysql-simple (dependency of reddit-bot-0.1.0.0:*test)
rejecting: mysql-simple-0.2.2.5, mysql-simple-0.2.2.4, mysql-simple-0.2.2.3,
mysql-simple-0.2.2.2, mysql-simple-0.2.2.1, mysql-simple-0.2.2.0,
mysql-simple-0.2.1.2, mysql-simple-0.2.1.1, mysql-simple-0.2.1.0,
mysql-simple-0.2.0.2, mysql-simple-0.2.0.1, mysql-simple-0.2.0.0,
mysql-simple-0.1.0.1, mysql-simple-0.1.0.0 (constraint from main config
/tmp/cabal-solver8501/cabal.config requires ==0.4.0.0)
Dependency tree exhaustively searched.
<<<< Cabal errors end