Error running app Default Activity Not Found
https://blog.csdn.net/DeMonliuhui/article/details/83046252
https://blog.csdn.net/yforyoung/article/details/84952283
我的错误是少写了
https://blog.csdn.net/DeMonliuhui/article/details/83046252
https://blog.csdn.net/yforyoung/article/details/84952283
我的错误是少写了