1# Update mock_android.jar 2 3## Build mock_android.jar 4 5First, use set up instructions from layoutlib tutorial to make commands like `m` work. 6 7Then, run the following in the repository root: 8 9``` 10m mock_android 11mv out/host/linux-x86/framework/mock_android.jar frameworks/layoutlib/create/tests/res/data/mock_android.jar 12``` 13 14## Build problems 15 16If you see a build error like: 17 18``` 19[ 29% 351/1203] including frameworks/layoutlib/out/test/create/mock_data/Android.mk ... 20FAILED: 21build/make/core/base_rules.mk:325: error: frameworks/layoutlib/out/test/create/mock_data: MODULE.linux.JAVA_LIBRARIES.mock_android already defined by frameworks/layoutlib/create/tests/res/mock_data. 2216:26:52 ckati failed with: exit status 1 23``` 24 25a quick solution would be to remove `frameworks/layoutlib/out/test/create/mock_data/Android.mk`. 26