[blocks (2)4] Error from Companion: Argument #2 ((quote LBL4_symbol)) to 'gnu.mapping.Environment.isBound(gnu.mapping.Symbol)' has wrong type (gnu.lists.PairWithPosition) (gnu.lists.PairWithPosition cannot be cast to gnu.mapping.Symbol) im not quit sure what the problem is also english isnt my fi…

This a cute one. In screen difficulty2, look at [image] I homed in on this by searching (ctrl-F) for LBL4_symbol) At first I thought I had to wipe dust off my screen, but it looks to be part of the component name. This fixes the problem. [image] That quote mark poisoned the Companion. By t…

Can someone help me with this error ? Argument #2 ((quote LBL4_symbol)) to

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ABG August 28, 2025, 12:33am 6

For our foreign readers, I have mirrored the procedures chapter of the free online book here.

I encourage you to read it and use it.

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