I keep getting an error while using react router, please anyone guide me what's the possible solution for this

programming web dev
1

react.js:20478 Warning: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components).
printWarning @ react.js:20478
warning @ react.js:20502
createElement @ react.js:10928
eval @ embedded:41
transform.run @ browser.min.js:4
exec @ browser.min.js:4
runScripts @ browser.min.js:4
react.js:20478 Warning: Failed prop type: The prop history is marked as required in Router, but its value is undefined.
in Router
printWarning @ react.js:20478
warning @ react.js:20502
checkReactTypeSpec @ react.js:17304
validatePropTypes @ react.js:10914
createElement @ react.js:10950
eval @ embedded:40
transform.run @ browser.min.js:4
exec @ browser.min.js:4
runScripts @ browser.min.js:4
react-router.js:1793 Uncaught TypeError: Cannot read property ‘location’ of undefined
at new Router (react-router.js:1793)
at react.js:6191
at measureLifeCyclePerf (react.js:5971)
at ReactCompositeComponentWrapper._constructComponentWithoutOwner (react.js:6190)
at ReactCompositeComponentWrapper._constructComponent (react.js:6176)
at ReactCompositeComponentWrapper.mountComponent (react.js:6084)
at Object.mountComponent (react.js:13768)
at ReactCompositeComponentWrapper.performInitialMount (react.js:6267)
at ReactCompositeComponentWrapper.mountComponent (react.js:6154)
at Object.mountComponent (react.js:13768)

2

Can you post your code somewhere so we can see it?