After installing react-native-speech got error

[suvracn]

error: bundling failed: Error: While trying to resolve module react-native-speech from file /Applications/MAMP/htdocs/echoapp/demoPro/App.js, the package /Applications/MAMP/htdocs/echoapp/demoPro/node_modules/react-native-speech/package.json was successfully found. However, this package itself specifies a main module field that could not be resolved (/Applications/MAMP/htdocs/echoapp/demoPro/node_modules/react-native-speech/SpeechSynthesizer.ios.js. Indeed, none of these files exist:

• /Applications/MAMP/htdocs/echoapp/demoPro/node_modules/react-native-speech/SpeechSynthesizer.ios.js(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json)
• /Applications/MAMP/htdocs/echoapp/demoPro/node_modules/react-native-speech/SpeechSynthesizer.ios.js/index(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json)
  at ResolutionRequest.resolveDependency (/Applications/MAMP/htdocs/echoapp/demoPro/node_modules/metro/src/node-haste/DependencyGraph/ResolutionRequest.js:103:15)
  at DependencyGraph.resolveDependency (/Applications/MAMP/htdocs/echoapp/demoPro/node_modules/metro/src/node-haste/DependencyGraph.js:272:4579)
  at dependencies.map.relativePath (/Applications/MAMP/htdocs/echoapp/demoPro/node_modules/metro/src/DeltaBundler/traverseDependencies.js:376:19)
  at Array.map ()
  at resolveDependencies (/Applications/MAMP/htdocs/echoapp/demoPro/node_modules/metro/src/DeltaBundler/traverseDependencies.js:374:16)
  at /Applications/MAMP/htdocs/echoapp/demoPro/node_modules/metro/src/DeltaBundler/traverseDependencies.js:212:33
  at Generator.next ()
  at step (/Applications/MAMP/htdocs/echoapp/demoPro/node_modules/metro/src/DeltaBundler/traverseDependencies.js:297:313)
  at /Applications/MAMP/htdocs/echoapp/demoPro/node_modules/metro/src/DeltaBundler/traverseDependencies.js:297:473