npm install 报错ERESOLVE unable to resolve dependency tree

 1.异常信息

60 error code ERESOLVE
61 error ERESOLVE unable to resolve dependency tree
62 error
63 error While resolving: gg@0.0.0
63 error Found: @angular/compiler@11.0.9
63 error node_modules/@angular/compiler
63 error   @angular/compiler@"~11.0.4" from the root project
63 error
63 error Could not resolve dependency:
63 error peer @angular/compiler@"11.2.14" from @angular/compiler-cli@11.2.14
63 error node_modules/@angular/compiler-cli
63 error   peer @angular/compiler-cli@"^11.0.0" from @angular-devkit/build-angular@0.1100.7
63 error   node_modules/@angular-devkit/build-angular
63 error
63 error Fix the upstream dependency conflict, or retry
63 error this command with --force, or --legacy-peer-deps
63 error to accept an incorrect (and potentially broken) dependency resolution.
63 error
63 error See D:\nodejs\node_cache\eresolve-report.txt for a full report.
64 verbose exit 1

解决：

设置可以安装旧包：npm config set legacy-peer-deps true

Linux：sudo npm config set legacy-peer-deps true