Describe the bug

I started to have this cryptic error message when starting my app:

Uncaught TypeError: evalConditions is not a function or its return value is not iterable
at Switch.createMemo.name [as fn] (dev.js:1517:33)
at runComputation (dev.js:691:22)
at updateComputation (dev.js:674:3)
at Object.readSignal (dev.js:607:67)
at resolveChildren (dev.js:983:82)
at resolveChildren (dev.js:983:66)
at createMemo.name [as fn] (dev.js:573:33)
at runComputation (dev.js:691:22)
at updateComputation (dev.js:674:3)
at createMemo (dev.js:251:10)

There is no indication of the problem in my code or the line that causes this error.

Platform

• OS: Windows
• Browser: Chrome 117
• SolidJS: 1.7.12

Update:

The cause seems to be this line:

<Match when={!currentUser.latest && currentUser.loading}>

If I remove the condition !currentUser.latest (or !currentUser()), the error disappears. Basically what I am trying to match on is: "the current user is loading for the first time (i.e. has not been previously fetched)"

So there are 2 issues:

1. cryptic error message (had to remove one by one every Match in different Switch elements to see which caused the error);
2. I don't see why I can't check if the resource value is undefined or has been previously fetched in a Match.