Revert "DummyCore first build(1.1dev)"

This reverts commit b3efe0c897a39e5d43dee4b4c6b3c7e5d1e15c25.
Revert "Revert "DummyCore first build(1.1dev)""

This reverts commit 135e6fd7a9d1e3491137ad4633fdb3b51d9b5352.