我第一次安装并尝试了android studio。它看起来很棒。但是,当我尝试从 SDK 管理器更新某些内容时,我遇到了以下问题:
Downloading Android Wear ARM EABI v7a System Image, Android API 20, revision 1
Installing Android Wear ARM EABI v7a System Image, Android API 20, revision 1
Failed to create directory C:\Program Files (x86)\Android\android-studio\sdk\system-images\android-20\android-wear\armeabi-v7a
Downloading Android Wear Intel x86 Atom System Image, Android API 20, revision 1
Installing Android Wear Intel x86 Atom System Image, Android API 20, revision 1
Failed to create directory C:\Program Files (x86)\Android\android-studio\sdk\system-images\android-20\android-wear\x86
Downloading Android Support Library, revision 20
Installing Android Support Library, revision 20
Failed to create directory C:\Program Files (x86)\Android\android-studio\sdk\extras\android\support
我给了文件夹的写权限。接下来我该怎么办?