The Aberdeen bypass will still open to traffic in the coming weeks, First Minister Nicola Sturgeon has confirmed.
She had originally caused confusion in Holyrood after saying the route would be open by the end of the year, when it had previously been slated to open by the end of autumn.
But a Transport Scotland spokesman told the Evening Express that a “clerical error” had led to Ms Sturgeon making a mistake.
North East MSP Mike Rumbles, who is also the Liberal Democrat transport spokesman, criticised the government over the error.
An opening event for the route takes place this weekend when visitors get the opportunity to visit the route before it opens.
Mr Rumbles said: “What a shambles. It is clear that the Scottish Government has lost all control over the project and ministers have no idea when the road will be ready.
“This is the fourth time this year the Scottish Government has found itself in a muddle over the opening date.
“It has repeatedly tried to rewrite history by brushing over substantial delays to the AWPR.
“For many local people and businesses, each delay is very disappointing and very costly.
“The new transport minister must provide a clear plan to open the road, with a realistic completion date, as soon as possible.”
In a later update to the Scottish Parliament Ms Sturgeon said: “I want to make it clear that the opening event is planned for this weekend and the route will open to traffic in the coming weeks.”