when restart rest-server, UnhandledPromiseRejectionWarning: Error: launcher config error

[CoderInCV]

Organization Name:

Short summary about the issue/question:
when restart rest-server, this error happend:
(node:25) UnhandledPromiseRejectionWarning: Error: launcher config error
ValidationError: child "alertManagerUrl" fails because ["alertManagerUrl" is required]
at Object. (/usr/src/app/src/config/launcher.js:146:11)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (/usr/src/app/src/controllers/internal/tail-log.js:24:24)
at Module._compile (internal/modules/cjs/loader.js:778:30)
(node:25) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:25) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Brief what process you are following:

How to reproduce it:

OpenPAI Environment: linux 16.04

• OpenPAI version: v1.8.0
• Cloud provider or hardware configuration:
• OS (e.g. from /etc/os-release):
• Kernel (e.g. uname -a):
• Hardware (e.g. core number, memory size, storage size, GPU type etc.):
• Others:

Anything else we need to know:

[CoderInCV]

seems because dev_box version is not compatibal with pai version