ERROR in Error: Metadata version mismatch for module <Angular4.3-AppPath>/node_modules/angular2-qrscanner/angular2-qrscanner.d.ts, found version 4, expected 3, resolving symbol <Module_Name>in <Angular4.3-AppPath>/src/app/modules/manage/device/device.module.ts, resolving symbol <Module_Name>in <Angular4.3-AppPath>/src/app/<Module_Path>.ts

[aditnaidu2018]

We get Metadata error which is hindering our deployments. As it does not allow ng build. Below is the configuration ; followed by full error trace.
Kindly help us.

angular2-qrscanner version: 1.0.7
Angular CLI: 1.5.0
Node: 8.10.0
OS: win32 x64
Angular: 4.3.2
... common, compiler, compiler-cli, core, forms, http
... platform-browser, platform-browser-dynamic, router

@angular/animations: 4.4.0-RC.0
@angular/cdk: 2.0.0-beta.10
@angular/cli: 1.5.0
@angular/flex-layout: 2.0.0-beta.8
@angular/material: 2.0.0-beta.10
@angular-devkit/build-optimizer: 0.0.33
@angular-devkit/core: 0.0.20
@angular-devkit/schematics: 0.0.35
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.8.0
@schematics/angular: 0.1.3
typescript: 2.6.1
webpack: 3.8.1

ERROR in Error: Metadata version mismatch for module <Angular4.3-AppPath>/node_modules/angular2-qrscanner/angular2-qrscanner.d.ts, found version 4, expected 3, resolving symbol <Module_Name>in <Angular4.3-AppPath>/src/app/modules/manage/device/device.module.ts, resolving symbol <Module_Name>in <Angular4.3-AppPath>/src/app/<Module_Path>.ts
at syntaxError (<Angular4.3-AppPath>\node_modules@angular\compiler\bundles\compiler.umd.js:1725:34)
at simplifyInContext (<Angular4.3-AppPath>\node_modules@angular\compiler\bundles\compiler.umd.js:24953:23)
at StaticReflector.simplify (<Angular4.3-AppPath>\node_modules@angular\compiler\bundles\compiler.umd.js:24965:13)
at StaticReflector.annotations (<Angular4.3-AppPath>\node_modules@angular\compiler\bundles\compiler.umd.js:24395:41)
at _getNgModuleMetadata (<Angular4.3-AppPath>\node_modules@angular\compiler-cli\src\ngtools_impl.js:138:31)
at _extractLazyRoutesFromStaticModule (<Angular4.3-AppPath>\node_modules@angular\compiler-cli\src\ngtools_impl.js:109:26)
at <Angular4.3-AppPath>\node_modules@angular\compiler-cli\src\ngtools_impl.js:129:27
at Array.reduce ()
at _extractLazyRoutesFromStaticModule (<Angular4.3-AppPath>\node_modules@angular\compiler-cli\src\ngtools_impl.js:128:10)
at Object.listLazyRoutesOfModule (<Angular4.3-AppPath>\node_modules@angular\compiler-cli\src\ngtools_impl.js:53:22)
at Function.NgTools_InternalApi_NG_2.listLazyRoutes (<Angular4.3-AppPath>\node_modules@angular\compiler-cli\src\ngtools_api.js:91:39)
at AotPlugin._getLazyRoutesFromNgtools (<Angular4.3-AppPath>\node_modules@ngtools\webpack\src\plugin.js:241:66)
at _donePromise.Promise.resolve.then.then.then.then.then (<Angular4.3-AppPath>\node_modules@ngtools\webpack\src\plugin.js:495:24)
at
at process._tickCallback (internal/process/next_tick.js:188:7)

webpack: Failed to compile.