在 Yii2 中执行 init 命令后，报错：yii\web\Request::cookieValidationKey must be configured with a secret key.

1、在 Yii2 中执行 init 命令后，报错：yii\web\Request::cookieValidationKey must be configured with a secret key.。如图1

图1

2、最终决定完善一下 environments 目录下的一组文件，因为这是一个复制的新的应用。在 generate cookie validation key in 时，确定是遗漏域名 https://tougao.apply.local 所对应的 文件 generate cookie validation key in papersubmission/config/main-local.php。如图2

图2

PS C:\wwwroot\apply-server\src> ./init
Yii Application Initialization Tool v1.0

Which environment do you want the application to be initialized in?

  [0] Development
  [1] Production

  Your choice [0-1, or "q" to quit] 0

  Initialize the application under 'Development' environment? [yes|no] yes

  Start initialization ...

      exist api/config/main-local.php
            ...overwrite? [Yes|No|All|Quit] All
  overwrite api/config/main-local.php
  unchanged api/config/params-local.php
  unchanged backend/config/codeception-local.php
  overwrite backend/config/main-local.php
  unchanged backend/config/params-local.php
  unchanged backend/config/test-local.php
  unchanged backend/web/index-test.php
  unchanged backend/web/index.php
  unchanged backend/web/robots.txt
  overwrite common/config/codeception-local.php
  overwrite common/config/main-local.php
  overwrite common/config/params-local.php
  unchanged common/config/test-local.php
  unchanged console/config/main-local.php
  unchanged console/config/params-local.php
  unchanged console/config/test-local.php
  unchanged frontend/config/codeception-local.php
  overwrite frontend/config/main-local.php
  unchanged frontend/config/params-local.php
  unchanged frontend/config/test-local.php
  unchanged frontend/web/index-test.php
  unchanged frontend/web/index.php
  unchanged frontend/web/robots.txt
  overwrite management/config/main-local.php
  unchanged management/config/params-local.php
  unchanged papersubmission/config/main-local.php
  unchanged papersubmission/config/params-local.php
  unchanged yii
  unchanged yii_test
  unchanged yii_test.bat
   generate cookie validation key in backend/config/main-local.php
   generate cookie validation key in common/config/codeception-local.php
   generate cookie validation key in frontend/config/main-local.php
   generate cookie validation key in management/config/main-local.php
   generate cookie validation key in api/config/main-local.php
      chmod 0777 backend/runtime
      chmod 0777 backend/web/assets
      chmod 0777 console/runtime
      chmod 0777 frontend/runtime
      chmod 0777 frontend/web/assets
      chmod 0777 api/runtime
      chmod 0777 api/web/assets
      chmod 0777 management/runtime
      chmod 0777 management/web/assets
      chmod 0755 yii
      chmod 0755 yii_test

  ... initialization completed.

3、复制 /environments/dev/frontend 至 /environments/dev/papersubmission ，复制 /environments/prod/frontend 至 /environments/prod/papersubmission ，然后编辑 /environments/index.php ，在其中添加 papersubmission 相关的配置项。如图3

图3

4、在 Yii2 中再次执行 init 命令后，不再报错。