entity 구현 1:1 강의 질문입니다.

안녕하세요. 좋은 강의 감사합니다.

entity 구현 1:1 강의에서

npm i 후

package: '@angular-devkit/core@15.1.4', Unsupported engine 이라고 나오는데,

이렇게 터미널에 찍히는 이유가 무엇인가요?
계속 사용할 경우 어떤 문제가 발생하나요?

npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@angular-devkit/core@15.1.4',
npm WARN EBADENGINE   required: {
npm WARN EBADENGINE     node: '^14.20.0 || ^16.13.0 || >=18.10.0',
npm WARN EBADENGINE     npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE     yarn: '>= 1.13.0'
npm WARN EBADENGINE   },
npm WARN EBADENGINE   current: { node: 'v16.12.0', npm: '8.1.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@angular-devkit/schematics@15.1.4',
npm WARN EBADENGINE   required: {
npm WARN EBADENGINE     node: '^14.20.0 || ^16.13.0 || >=18.10.0',
npm WARN EBADENGINE     npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE     yarn: '>= 1.13.0'
npm WARN EBADENGINE   },
npm WARN EBADENGINE   current: { node: 'v16.12.0', npm: '8.1.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@angular-devkit/schematics-cli@15.1.4',
npm WARN EBADENGINE   required: {
npm WARN EBADENGINE     node: '^14.20.0 || ^16.13.0 || >=18.10.0',
npm WARN EBADENGINE     npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE     yarn: '>= 1.13.0'
npm WARN EBADENGINE   },
npm WARN EBADENGINE   current: { node: 'v16.12.0', npm: '8.1.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@angular-devkit/core@15.0.4',
npm WARN EBADENGINE   required: {
npm WARN EBADENGINE     node: '^14.20.0 || ^16.13.0 || >=18.10.0',
npm WARN EBADENGINE     npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE     yarn: '>= 1.13.0'
npm WARN EBADENGINE   },
npm WARN EBADENGINE   current: { node: 'v16.12.0', npm: '8.1.0' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@angular-devkit/schematics@15.0.4',
npm WARN EBADENGINE   required: {
npm WARN EBADENGINE     node: '^14.20.0 || ^16.13.0 || >=18.10.0',
npm WARN EBADENGINE     npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE     yarn: '>= 1.13.0'
npm WARN EBADENGINE   },
npm WARN EBADENGINE   current: { node: 'v16.12.0', npm: '8.1.0' }
npm WARN EBADENGINE }
npm WARN deprecated apollo-datasource@3.3.2: The `apollo-datasource` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). See https://www.apollographql.com/docs/apollo-server/previous-versions/ for more details.
npm WARN deprecated apollo-server-errors@3.3.1: The `apollo-server-errors` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). This package's functionality is now found in the `@apollo/server` package. See https://www.apollographql.com/docs/apollo-server/previous-versions/ for more details.
npm WARN deprecated apollo-server-plugin-base@3.7.1: The `apollo-server-plugin-base` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). This package's functionality is now found in the `@apollo/server` package. See https://www.apollographql.com/docs/apollo-server/previous-versions/ for more details. 
npm WARN deprecated apollo-server-types@3.7.1: The `apollo-server-types` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). This package's functionality is now found in the `@apollo/server` package. See https://www.apollographql.com/docs/apollo-server/previous-versions/ for more details.
npm WARN deprecated sourcemap-codec@1.4.8: Please use @jridgewell/sourcemap-codec instead
npm WARN deprecated apollo-server-express@3.11.1: The `apollo-server-express` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). This package's functionality is now found in the `@apollo/server` package. See https://www.apollographql.com/docs/apollo-server/previous-versions/ for more details.        
npm WARN deprecated apollo-reporting-protobuf@3.3.3: The `apollo-reporting-protobuf` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). This package's functionality is now found in the `@apollo/usage-reporting-protobuf` package. See https://www.apollographql.com/docs/apollo-server/previous-versions/ 
for more details.
npm WARN deprecated apollo-server-env@4.2.1: The `apollo-server-env` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). This 
package's functionality is now found in the `@apollo/utils.fetcher` package. See https://www.apollographql.com/docs/apollo-server/previous-versions/ for more details.
npm WARN deprecated subscriptions-transport-ws@0.11.0: The `subscriptions-transport-ws` package is no longer maintained. We recommend you use `graphql-ws` instead. For help migrating Apollo software to `graphql-ws`, see https://www.apollographql.com/docs/apollo-server/data/subscriptions/#switching-from-subscriptions-transport-ws    For general help using `graphql-ws`, see https://github.com/enisdenjo/graphql-ws/blob/master/README.md
npm WARN deprecated apollo-server-core@3.11.1: The `apollo-server-core` package is part of Apollo Server v2 and v3, which are now deprecated (end-of-life October 22nd 2023). This package's functionality is now found in the `@apollo/server` package. See https://www.apollographql.com/docs/apollo-server/previous-versions/ for more details.

added 806 packages, and audited 807 packages in 21s

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found 0 vulnerabilities

npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@angular-devkit/core@15.1.4',
npm WARN EBADENGINE   required: {
npm WARN EBADENGINE     node: '^14.20.0 || ^16.13.0 || >=18.10.0',
npm WARN EBADENGINE     npm: '^6.11.0 || ^7.5.6 || >=8.0.0',
npm WARN EBADENGINE     yarn: '>= 1.13.0'
npm WARN EBADENGINE   },
npm WARN EBADENGINE   current: { node: 'v16.12.0', npm: '8.1.0' }
npm WARN EBADENGINE }