Multiple tabs (trace process) found.

[depiction]

The getting started guide indicates that only one tab may be open or Big Rig will fail to identify the correct tab to analyze. Therefore, I closed Chrome completely, restarted it, then went to the page I wanted to test. I saved the timeline data and imported into Big Rig web app.

After importing the activity log shows 0 actions imported and the following status: Multiple tabs (trace process) found.

[wardpeet]

Might be something to do with extensions?

[paullewis]

@wardpeet may well be right. https://github.com/GoogleChrome/big-rig/blob/master/app/src/bigrig/processor.py#L108 is where the processor attempts to exclude Background Pages created by an extension, but this stuff is generally shifting sands, and something may well have changed. Two things: can you try the CLI tool? (npm install -g bigrig && bigrig /path/to/timeline.json --pp) and, failing that, can you put the trace file somewhere so I can try and repro?