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ERROR in Error: Metadata version mismatch for module C:/www/angularfs/node_modules/angularfire2/index.d.ts, found version 4, expected 3, resolving symbol AppModule in C:/www/angularfs/src/app/app.module.ts, resolving symbol AppModule in C:/www/angularfs/src/app/app.mo
dule.ts, resolving symbol AppModule in C:/www/angularfs/src/app/app.module.ts
at syntaxError (C:\www\angularfs\node_modules@angular\compiler\bundles\compiler.umd.js:1729:34)
at simplifyInContext (C:\www\angularfs\node_modules@angular\compiler\bundles\compiler.umd.js:24979:23)
at StaticReflector.simplify (C:\www\angularfs\node_modules@angular\compiler\bundles\compiler.umd.js:24991:13)
at StaticReflector.annotations (C:\www\angularfs\node_modules@angular\compiler\bundles\compiler.umd.js:24418:41)
at _getNgModuleMetadata (C:\www\angularfs\node_modules@angular\compiler-cli\src\ngtools_impl.js:138:31)
at _extractLazyRoutesFromStaticModule (C:\www\angularfs\node_modules@angular\compiler-cli\src\ngtools_impl.js:109:26)
at Object.listLazyRoutesOfModule (C:\www\angularfs\node_modules@angular\compiler-cli\src\ngtools_impl.js:53:22)
at Function.NgTools_InternalApi_NG_2.listLazyRoutes (C:\www\angularfs\node_modules@angular\compiler-cli\src\ngtools_api.js:91:39)
at AotPlugin._getLazyRoutesFromNgtools (C:\www\angularfs\node_modules@ngtools\webpack\src\plugin.js:212:44)
at _donePromise.Promise.resolve.then.then.then.then.then (C:\www\angularfs\node_modules@ngtools\webpack\src\plugin.js:448:24)
at
at process._tickCallback (internal/process/next_tick.js:188:7)

webpack: Failed to compile.

npm -v
5.5.1
node -v
v8.9.0

I have problem that i can not run ng serve

i have got this :

$ ng serve
The "@angular/compiler-cli" package was not properly installed. Error: Error: Ca nnot find module '@angular/compiler'
Error: The "@angular/compiler-cli" package was not properly installed. Error: Er ror: Cannot find module '@angular/compiler'
at Object. (C:\Users\mohammecd\AppData\Roaming\npm\node_modules@ angular\cli\node_modules@ngtools\webpack\src\index.js:14:11)
at Module._compile (module.js:573:30)
at Object.Module._extensions..js (module.js:584:10)
at Module.load (module.js:507:32)
at tryModuleLoad (module.js:470:12)
at Function.Module._load (module.js:462:3)
at Module.require (module.js:517:17)
at require (internal/module.js:11:18)
at Object. (C:\Users\mohammecd\AppData\Roaming\npm\node_modules@ angular\cli\tasks\eject.js:10:19)
at Module._compile (module.js:573:30)
at Object.Module._extensions..js (module.js:584:10)
at Module.load (module.js:507:32)
at tryModuleLoad (module.js:470:12)
at Function.Module._load (module.js:462:3)
at Module.require (module.js:517:17)
at require (internal/module.js:11:18)