Problem with ARM DS IDE

Hello,  I have installed arm development studio 24.0.1 but I concurred following errors:-

1.I cannot see DS debugger in the DEBUG Configuration(Screen shot attached1).

 2. When I import project from existing workspace , I mistakenly selected all the projects while I needed only Altera Cyclone-V , how to unselect all other projects from list.

3.For ARM cyclone-V , it is showing error that complier 5 is required.

Please help me to solve these errors.