Error while processing v8.log - TypeError [ERR_INVALID_ARG_TYPE]

[PraveenRamakrishna]

While processing attached v8 log, following error is thrown.

internal/fs/utils.js:537 throw new ERR_INVALID_ARG_TYPE(propName, ['string', 'Buffer', 'URL'], path); ^

TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string or an instance of Buffer or URL. Received undefined at Object.open (fs.js:424:10) at ReadStream.open (internal/fs/streams.js:146:13) at new ReadStream (internal/fs/streams.js:134:10) at Object.createReadStream (fs.js:1888:10) at Object. (C:\Users\I537607\scoop\persist\nvm\nodejs\v12.18.0\node_modules\flamebearer\bin\flamebearer:10:40) at Module._compile (internal/modules/cjs/loader.js:1138:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10) at Module.load (internal/modules/cjs/loader.js:986:32) at Function.Module._load (internal/modules/cjs/loader.js:879:14) at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12) { code: 'ERR_INVALID_ARG_TYPE' isolate-0000019DFAB4A890-2000-v8.zip

Could you please help me here.

[fmileto]

Same issue there

[chenrui333]

works for me. (it looks like flamebearer cannot be run without any args, but it does parse the flamegraph pretty well)

node --prof app.js
node --prof-process --preprocess -j isolate*.log | flamebearer

I have tested with both nodev14 and nodev16