config.js:19 throw new Error(`The "${name} environment variable must be set

[Raja-web-developer]

Hi
How to fix the issue.

Error: The "FHIR_SERVER_R2 environment variable must be set
at D:\smart-appone\smart-launcher\src\config.js:19:11
at Array.forEach ()
at Object. (D:\smart-appone\smart-launcher\src\config.js:17:3)
at Module._compile (node:internal/modules/cjs/loader:1105:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object. (D:\smart-appone\smart-launcher\src\index.js:4:20)