Summary
My sandbox got upgraded to API 66.0. Local Dev either can't connect to client, or when it does doesn't hot reload anything.
Steps To Reproduce:
lightning-dev 5.1.4 (prerelease) and can't connect to client:
sf plugins install @salesforce/plugin-lightning-dev@prerelease
sf lightning generate component --name localDevTest --type lwc --output-dir force-app/main/default/lwc
sf lightning dev component --name localDevTest
Expected Result
Work properly and hot reload
Actual Result
Hot reloading doesn't work
Additional Information
Screenshots:
Logs:
be1a616……0000009OXlKAM:23228 ComponentProfiler: Component-level profiling has not been enabled.
(anonymous) @ be1a616……0000009OXlKAM:23228
ad64725……0000009OXlKAM:11749 🔵 PREVIEW MODE: previewApplication in normal mode!
ad64725……0000009OXlKAM:11785 Client not available. Running in fallback mode.
loadComponentData @ ad64725……0000009OXlKAM:11785
System Information
SF CLI:
{
"architecture": "darwin-arm64",
"cliVersion": "@salesforce/cli/2.123.1",
"nodeVersion": "node-v22.22.0"
}OS:
macOS 26.2 (25C56)
Summary
My sandbox got upgraded to API 66.0. Local Dev either can't connect to client, or when it does doesn't hot reload anything.
Steps To Reproduce:
lightning-dev 5.1.4 (prerelease)and can't connect to client:Expected Result
Work properly and hot reload
Actual Result
Hot reloading doesn't work
Additional Information
Screenshots:
Logs:
System Information
SF CLI:
{ "architecture": "darwin-arm64", "cliVersion": "@salesforce/cli/2.123.1", "nodeVersion": "node-v22.22.0" }OS:
macOS 26.2 (25C56)