React Native Android应用未启动

Question

I have an android app use react native. The app run smoothly before. But for now it didn't run when I type command react-native run-android . I got error message like this:

Error type 3

Error: Activity class {com.test/com.test.MainActivity} does not exist.

And after that error, I can't run any new app. I run command react-native init app_name , cd app_name , and react-native run-android . The error message I got is:

The development server returned response error code:500

Anyone know how to resolve this? Thanks ^^

Answer 1

Problem solved!

Just type this command

npm install --save babel-preset-react-native@2.1.0