Full Idea
The 'general will' is ambiguous in Rousseau's usage. It should mean 'will issuing laws which aim at the general good', but it frequently has for him the meaning 'consensus of the group'.
Gist of Idea
Rousseau uses 'general will' as both aiming at the common good, and as mere consensus
Source
comment on Jean-Jacques Rousseau (The Social Contract [1762]) by Robert Paul Wolff - In Defence of Anarchism 2.4
A Reaction
Wolff says this leads Rousseau into erroneous assumption that the general will always aims at the common good, and should therefore be accepted by the minority.
Book Reference
Wolff,Robert Paul: 'In Defence of Anarchism' [Harper Torchbooks 1976], p.57