версия компилятора c # не совместима

Question

Я пытаюсь создать проект с помощью команды ng new.Я сталкиваюсь с этой проблемой.Я не могу понять, почему c # версия должна быть проблемой при попытке создать новый угловой проект

     ng new my-dream-app

    ? Would you like to add Angular routing? No
    ? Which stylesheet format would you like to use? CSS
    CREATE my-dream-app/angular.json (3822 bytes)
    CREATE my-dream-app/package.json (1319 bytes)
    CREATE my-dream-app/README.md (1027 bytes)
    CREATE my-dream-app/tsconfig.json (408 bytes)
    CREATE my-dream-app/tslint.json (2837 bytes)
    CREATE my-dream-app/.editorconfig (246 bytes)
    CREATE my-dream-app/.gitignore (503 bytes)
    CREATE my-dream-app/src/favicon.ico (5430 bytes)
    CREATE my-dream-app/src/index.html (297 bytes)
    CREATE my-dream-app/src/main.ts (372 bytes)
    CREATE my-dream-app/src/polyfills.ts (3234 bytes)
    CREATE my-dream-app/src/test.ts (642 bytes)
    CREATE my-dream-app/src/styles.css (80 bytes)
    CREATE my-dream-app/src/browserslist (388 bytes)
    CREATE my-dream-app/src/karma.conf.js (964 bytes)
    CREATE my-dream-app/src/tsconfig.app.json (166 bytes)
    CREATE my-dream-app/src/tsconfig.spec.json (256 bytes)
    CREATE my-dream-app/src/tslint.json (314 bytes)
    CREATE my-dream-app/src/assets/.gitkeep (0 bytes)
    CREATE my-dream-app/src/environments/environment.prod.ts (51 bytes)
    CREATE my-dream-app/src/environments/environment.ts (662 bytes)
    CREATE my-dream-app/src/app/app.module.ts (314 bytes)
    CREATE my-dream-app/src/app/app.component.html (1141 bytes)
    CREATE my-dream-app/src/app/app.component.spec.ts (996 bytes)
    CREATE my-dream-app/src/app/app.component.ts (216 bytes)
    CREATE my-dream-app/src/app/app.component.css (0 bytes)
    CREATE my-dream-app/e2e/protractor.conf.js (752 bytes)
    CREATE my-dream-app/e2e/tsconfig.e2e.json (213 bytes)
    CREATE my-dream-app/e2e/src/app.e2e-spec.ts (304 bytes)
    CREATE my-dream-app/e2e/src/app.po.ts (204 bytes)
    Microsoft (R) Visual C# Compiler version 4.7.3056.0
    for C# 5
    Copyright (C) Microsoft Corporation. All rights reserved.

    This compiler is provided as part of the Microsoft (R) .NET Framework, but only supports language versions up to C# 5, which is no longer the latest version. For compilers that support newer versions of the C# programming language, see http://go.microsoft.com/fwlink/?LinkID=533240

    fatal error CS2006: Command-line syntax error: Missing ':<text>' for '/d' option
    Package install failed, see above.

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    **NODE version - 8.11.3**
    **npm version - 6.11.3**
    **ng version - 7.0.7**

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