Resolving dependencies...
Warning: type-equality.cabal: Unknown fields: build-depends (line 21)
Fields allowed in this section:
name, version, cabal-version, build-type, license, license-file,
license-files, copyright, maintainer, stability, homepage,
package-url, bug-reports, synopsis, description, category, author,
tested-with, data-files, data-dir, extra-source-files,
extra-tmp-files, extra-doc-files
Configuring type-equality-0.1.0.1...
Building type-equality-0.1.0.1...
Preprocessing library type-equality-0.1.0.1...

src/Data/Type/Equality.hs:35:8:
    Could not find module ‘Prelude’
    It is a member of the hidden package ‘base-4.8.1.0’.
    Perhaps you need to add ‘base’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.

src/Data/Type/Equality.hs:38:8:
    Could not find module ‘Control.Category’
    It is a member of the hidden package ‘base-4.8.1.0’.
    Perhaps you need to add ‘base’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.
Failed to install type-equality-0.1.0.1
cabal: Error: some packages failed to install:
type-equality-0.1.0.1 failed during the building phase. The exception was:
ExitFailure 1