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Monday, 9 November 2020

Undefined is not an object (evaluating 'Component.propsType') - React-Native 0.61.5



 While working with React-Native Android Application sometimes we face this issue saying - 

Undefined is not an object (evaluating 'Component.propsType').


This issue generally occurs when our npm package versions get altered somehow. 


I have faced this error while trying to optimize my package.json. I have tried a lot of option cleaning Build folder, Resetting cache etc. but nothing worked.



Here are the few steps to resolve the error Undefined is not an object (evaluating 'Component.propsType').


  1. Make Sure you Reverse all your changes made in your package.json file.
  2. Delete node_modules folder inside your react-native application code
  3. Delete package-lock.json file
  4. Go To Android Studio/Build/Clean and clean the project build
  5. After that do npm install in your react-native project directory
  6. Run npm start --reset-cache to reset bundler cache
  7. After that run react-native run-android 
  8. It will start working now



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