The development server returned response error code: 500 react-native why this error can any one tell me

Question

error: TypeError: Cannot read property 'reduce' of undefined at resolveDependencies (G:\\React-Native\\Native\\chatmat\\node_modules\\metro\\src\\DeltaBundler\\traverseDependencies.js:411:33) at processModule (G:\\React-Native\\Native\\chatmat\\node_modules\\metro\\src\\DeltaBundler\\traverseDependencies.js:140:31) at async addDependency (G:\\React-Native\\Native\\chatmat\\node_modules\\metro\\src\\DeltaBundler\\traverseDependencies.js:230:18) at async Promise.all (index 8) at async processModule (G:\\React-Native\\Native\\chatmat\\node_modules\\metro\\src\\DeltaBundler\\traverseDependencies.js:198:5) at async addDependency (G:\\React-Native\\Native\\chatmat\\node_modules\\metro\\src\\DeltaBundler\\traverseDependencies.js:230:18) at async Promise.all (index 6) at async processModule (G:\\React-Native\\Native\\chatmat\\node_modules\\metro\\src\\DeltaBundler\\traverseDependencies.js:198:5) at async addDependency (G:\\React-Native\\Native\\chatmat\\node_modules\\metro\\src\\DeltaBundler\\traverseDependencies.js:230:18) at async Promise.all (index 2) Please see this images

Answer 1

Please show your query.

The error says it is not able to get parameter like

something .reduce , so it is not getting that something- it can either be null or undefined currently. You can put something? .reduce to check for null or undefined

Answer 2

As I can see your reduce is undefined or not getting it's value. Please check that. Also check the dependency you have used in this screen try to uninstall and then install it.