Prime Minister Theresa May will unveil plans on Sunday to levy an extra fee on foreign buyers of homes in Britain, saying she wanted to stop it being as easy for those who do not live in the country to buy homes "as hard working British residents".
"Unlike the prime minister I campaigned for Brexit", he said.
In an interview with the British Sunday Times, Mr Johnson said the United Kingdom should build a bridge to Ireland and put the HS2 rail line on hold to focus on a high-speed link in the north of England.
Even former Brexit secretary David Davis, who quit Mrs May's Cabinet along with Mr Johnson in protest at the Chequers plan, was dismissive of his fellow Leaver's proposals on housing and a bridge to Ireland.
A Conservative Party spokesman said the technical issue had been resolved and the app was functioning securely. "I think it's got to wait until after Brexit", said Alan Dixon, 72, from Derby.
Leftist leader Jeremy Corbyn presented a radical economic program for government at his own conference last week.
A number of embarrassing incidents, involving the Tories, were not long in coming.
May has repeated ruled out a new Brexit vote, and insists her plan is the only way to protect cross-border trade in goods and avoid physical checks on the Irish border.
Australian sparkling wine is replacing French champagne in Britain's largest chain of pubs to prove to British drinkers they need not fear cutting ties with the European Union.
"We want to capture that spirit for a new generation, celebrate our nation's diversity and talent, and mark this moment of national renewal with a once-in-a-generation celebration".
The Tory gathering in Birmingham has been marked by a deepening rift over Brexit policy.
Guardian columnist Dawn Foster, who was one of the first to spot the flaw, wrote: "FFS, the Tory conference app allows you to log in as other people and view their contact details just with their email address, no emailed security links, and post comments as them".
"The Conservative Party should roll out some basic computer security training to get their house in order".
It was an inauspicious start to a meeting that many Conservatives were already anxious about.
"We are investigating the issue further and apologise for any concern caused".
Business sector Greg Clark told members during a party fringe event that the comments were "totally the wrong thing to say, and I was shocked to hear it".
Environment Secretary Michael Gove's account was apparently accessed and his profile picture changed to that of Rupert Murdoch, his employer when he was a journalist.