Error:

App Launch:

To run and debug the Harmony device, configure the HarmonyOS runtime.

在Harmony设备上运行和调试应用程序，需要配置HarmonyOS运行时环境。

解决：entry => build-profile.json5

{
  "apiType": 'stageMode',
  "buildOption": {
  },
  "targets": [
    {
      "name": "default",
      "runtimeOS": "HarmonyOS"
    }
  ]