[Bug]: "Failed to get stats" HMR crash

[RobHannay]

Version

System:
    OS: macOS 15.3.2
    CPU: (10) arm64 Apple M1 Pro
    Memory: 78.00 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Browsers:
    Chrome: 134.0.6998.89
    Safari: 18.3.1
  npmPackages:
    @rsbuild/core: 1.2.18 => 1.2.18 
    @rsbuild/plugin-babel: 1.0.4 => 1.0.4 
    @rsbuild/plugin-css-minimizer: 1.0.2 => 1.0.2 
    @rsbuild/plugin-mdx: 1.0.2 => 1.0.2 
    @rsbuild/plugin-node-polyfill: 1.3.0 => 1.3.0 
    @rsbuild/plugin-react: 1.1.1 => 1.1.1 
    @rsbuild/plugin-type-check: 1.2.1 => 1.2.1

Details

I'm struggling to reliably reproduce, but wanted to highlight that it's still somehow trying to access stats that it can't find when doing HMR.

If you can't investigate further without a repro then feel free to close this issue. I will try and understand a pattern for it to occur

● web ━━━━━━━━━━━━━━━━━━━━━━━━━ (98%) emitting emit                                                                                                                                                                                             Failed to get stats due to error: Unable to access compilation with id = CompilationId(1) now. The compilation have been removed on the Rust side. The latest compilation id is CompilationId(742), are you trying to access the stats from the previous compilation?
file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:5275
        if (statsJson.entrypoints) for (let entrypoint of Object.values(statsJson.entrypoints)){
                      ^

TypeError: Cannot read properties of null (reading 'entrypoints')
    at SocketServer.sendStats (file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:5275:23)
    at SocketServer.onConnect (file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:5244:32)
    at WebSocketServer.<anonymous> (file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:5203:18)
    at WebSocketServer.emit (node:events:518:28)
    at file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:5186:27
    at WebSocketServer.completeUpgrade (/Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/compiled/ws/index.js:2213:11)
    at WebSocketServer.handleUpgrade (/Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/compiled/ws/index.js:2150:16)
    at SocketServer.upgrade (file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:5185:58)
    at CompilerDevMiddleware.upgrade (file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:5491:27)
    at Object.onUpgrade (file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:6150:57)
    at Http2SecureServer.onUpgrade (file:///Users/robhannay/web/node_modules/.pnpm/@[email protected]/node_modules/@rsbuild/core/dist/index.js:6066:42)
    at Http2SecureServer.emit (node:events:518:28)
    at onParserExecuteCommon (node:_http_server:950:14)
    at onParserExecute (node:_http_server:852:3)

Node.js v22.14.0

Followed up (from a child process I assume) with

Error: write EPIPE
    at target._send (node:internal/child_process:877:20)
    at target.send (node:internal/child_process:751:19)
    at /Users/robhannay/web/node_modules/.pnpm/[email protected]_@[email protected]_@[email protected][email protected]/node_modules/ts-checker-rspack-plugin/lib/rpc/expose-rpc.js:18:31
    at new Promise (<anonymous>)
    at sendMessage (/Users/robhannay/web/node_modules/.pnpm/[email protected]_@[email protected]_@[email protected][email protected]/node_modules/ts-checker-rspack-plugin/lib/rpc/expose-rpc.js:10:38)
    at process.handleMessage (/Users/robhannay/web/node_modules/.pnpm/[email protected]_@[email protected]_@[email protected][email protected]/node_modules/ts-checker-rspack-plugin/lib/rpc/expose-rpc.js:51:27) {
  errno: -32,
  code: 'EPIPE',
  syscall: 'write'
}

Reproduce link

As I can't provide reliable repro steps, I can't necessarily make a minimal one

Reproduce Steps

1. Run pnpm rsbuild dev
2. Edit a file
3. Sometimes, this error is thrown

[chenjiahan]

The web-infra-dev/rsbuild#4784 should resolve the Cannot read properties of null (reading 'entrypoints') error.

For the Unable to access compilation with id warning, @SyMind is trying to fix it