The file node_modules/angular2-qrscanner/angular2-qrscanner.d.ts has been detected as version 4, while version 3 was expected. Resolving symbol

We're encountering a Metadata error that is causing obstacles in our deployment process. This issue is preventing the execution of ng build. Below, you will find the configuration details along with the complete error trace.

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: Compilation failed.

Settings: 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

typescriptnpmangular-cling-build

Answer №1

Successfully fixed the issue on localhost:4200 by deprecating the package to [email protected]. Everything is now working perfectly!

However, when hosting it as an Azure WebApp, the camera does not load and an error message appears in the Chrome console:

The media was refused to load from 'blob:/5c07044f-447c-45a9-979e-458d5e955f8f' due to a Content Security Policy violation with directive "default-src 'unsafe-inline' data: https:". It seems that the 'media-src' was not explicitly set, so the 'default-src' is being used.

I have found a solution for this issue: Edge and IE browsers do not show this error, but the camera doesn't scan. I am considering switching to a different QR scanner or sticking with "angular2-qrscanner". I will need to make a decision soon.

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