TypeError: undefined is not an object (evaluating '_reactNative.Animated.Text.propTypes.style')

I solved this by,

• Commenting itemTextStyle: Text.propTypes.style in
  ..\node_modules\react-native-material-dropdown\src\components\dropdown file.

• And remove Animated in Animated.Text.propTypes.style in

  affix/index

  helper/index

  label/index

  of react-native-material-textfield.

• And added import { Animated, Text} from 'react-native'; in each of above three files.

Here is another solution I've found.

1. Remove installed package react-native-material-dropdown

   yarn remove react-native-material-dropdown

2. Install new packages react-native-material-dropdown-v2 and react-native-paper

   yarn add react-native-material-dropdown-v2 react-native-paper

3. Swap react-native-material-dropdown to react-native-material-dropdown-v2 in your code

   e.g. import { Dropdown } from 'react-native-material-dropdown' to import { Dropdown } from 'react-native-material-dropdown-v2'

I found the same problem while using @react-navigation/drawer

I've solved it by these steps.

1. Open node_modules and then search for react-native-material-textfield open the file and go to src folder
2. Under src you will see affix, helper, label folder - under each folder, there is an index.js
3. open the index.js of the mentioned folders one by one (all 3 folders) and search for the text style: Animated.Text.propTypes.style, and replace it by style: Text.propTypes
4. And import text form react-native like this import { Animated , Text} from 'react-native';
5. And now reload the terminal, and you are good to go