On his first visit to France as Iranian regime President, Rouhani faces diplomatic challenges. On one hand, despite a long diplomatic history between France and Iran, this relations have been prickly in recent years.

Maryam Rajavi leads the opposition NCRI from France

While Khomeini spent part of his exile life outside Paris, France today hosts many Iranian expatriates since 1979 revolution. That includes Maryam Rajavi, the president of the National Council of Resistance of Iran, which is based in the small French town of Auvers-sur-Oise.
Other roadblocks can be traced to France’s own diplomacy. Not only did Hollande’s government adopt one of the toughest Western positions during the Iran nuclear talks, but it is among the most adamant voices demanding the ouster of Syrian leader Bashar Assad – who counts Iran among his biggest champions.
There have even been gastronomic tensions. Rouhani’s planned visit in November was overshadowed by reports of a cancelled state meal with Hollande over Iranian demands that only halal meat and no wine could be served.

Source: DW, Jan. 27, 2016