Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: dropbox-sdk (user goal)
rejecting: dropbox-sdk-0.3.1, 0.3.0, 0.2.0, 0.1.1 (global constraint requires
==0.1.0)
trying: dropbox-sdk-0.1.0
trying: certificate-1.3.9 (dependency of dropbox-sdk-0.1.0)
trying: process-1.2.0.0/installed-163... (dependency of certificate-1.3.9)
next goal: unix (dependency of process-1.2.0.0/installed-163...)
rejecting: unix-2.7.0.1/installed-0d8... (conflict: unix =>
bytestring==0.10.4.0/installed-9f4..., dropbox-sdk => bytestring==0.9.*)
rejecting: unix-2.7.1.0, 2.7.0.1, 2.7.0.0, 2.6.0.1, 2.6.0.0, 2.5.1.1, 2.5.1.0,
2.5.0.0, 2.4.2.0, 2.4.1.0, 2.4.0.2, 2.4.0.1, 2.4.0.0, 2.3.2.0, 2.3.1.0,
2.3.0.0, 2.2.0.0, 2.0 (conflict: process => unix==2.7.0.1/installed-0d8...)
Backjump limit reached (change with --max-backjumps).