Palestinian Authority Chairman Mahmoud Abbas warned Wednesday that a US-sponsored international peace conference planned for November could fail if no plan for a solution to the Israeli-Palestinian conflict was devised ahead of the meeting. Following closed-door talks with Jordan's King Abdullah II in Amman, Abbas told state-run Jordan Television that the proposed conference "lacked clarity." He said he did not know an official date, other than mid-November, for the conference and was unsure who would attend. "The third issue is related to the content of the meeting," Abbas said. "If we go to a conference without clarity on a solution and without a declaration of principles within the framework of a work plan, I don't think that the conference will be beneficial."