Preprocessing library http-client-tls-0.3.4...
Network\HTTP\Client\TLS.hs:51:18:
    Ambiguous module name `Network.URI':
      it was found in multiple packages:
      network-uri-2.6.1.0 network-2.4.2.3
Installed texmath-0.8.6.7
cabal : cabal.exe: Error: some packages failed to install:
At line:15 char:5
+     cabal install -j pandoc --constraint='mtl<=2.1.3.1'
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (cabal.exe: Erro...led to install::String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError
 
http-client-tls-0.3.4 failed during the building phase. The exception was:
ExitFailure 1
pandoc-1.17.2 depends on http-client-tls-0.3.4 which failed to install.