Add platform/prebuilts/fullsdk/platforms/android-26
diff --git a/default.xml b/default.xml
index 0c73663..9a20b78 100644
--- a/default.xml
+++ b/default.xml
@@ -1167,6 +1167,7 @@
   <project name="platform/prebuilts/fullsdk/build-tools/22-linux" />
   <project name="platform/prebuilts/fullsdk/build-tools/22-windows" />
   <project name="platform/prebuilts/fullsdk/platforms/android-21" />
+  <project name="platform/prebuilts/fullsdk/platforms/android-26" />
   <project name="platform/prebuilts/fullsdk/platforms/android-28" />
   <project name="platform/prebuilts/fullsdk/sources/android-28" />
   <project name="platform/prebuilts/gcc/darwin-x86/aarch64/aarch64-linux-android-4.8" />