跑单纯的helloworld，模拟器运行正常，真机报错Unable to instantiate activity ComponentInfo
解决方案：
windows：setting ->Build,Execution,Deployment
Mac：preferences ->Build,Execution,Deployment
将最大级的勾去掉
clean项目，重新运行～
跑单纯的helloworld，模拟器运行正常，真机报错Unable to instantiate activity ComponentInfo
解决方案：
windows：setting ->Build,Execution,Deployment
Mac：preferences ->Build,Execution,Deployment
将最大级的勾去掉
clean项目，重新运行～
本文标题：Android:Unable to instantiate ac
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