 The goal of this clinical research study is to learn if the study drug AZD2014 can shrink growing or symptomatic meningiomas. Based on laboratory research, the cellular pathways which are blocked by AZD2014 are important for the growth and survival of meningiomas. Further treatment of meningioma cells in the laboratory setting has resulted in decreased survival of tumor cells. As such, the purpose of this research is to see whether treating your meningioma with AZD2014 will result in tumor shrinkage. The safety of AZD2014 will also be studied. Your physical state, your symptoms, changes in the size of the tumor, and laboratory findings obtained while on-study will help the research team decide if AZD2014 is safe and effective in patients with your condition. 