Modular•4mo ago

debug

I'm seeing Connection shut down by remote side while waiting for reply to initial handshake packet on my MacBook Air M2 when I launch the debugger in VSCodium (I tried VSCode too). Is the debugger supposed to be working?

6 Replies

ModularBot•4mo ago

Congrats @richard.kiss, you just advanced to level 1!

MM•4mo ago

I get the same message too, maybe we should file a bug?

MM•4mo ago

https://github.com/modularml/max/issues/227

GitHub

[BUG]: Debug Mojo File fails in VS Code with `Connection shut down ...

Bug description VS Code can no longer debug Mojo with the max 24.5 SDK installed with Magic CLI. Trying to run Debug Mojo File ends with the error message Connection shut down by remote side while ...

richard.kissOP•4mo ago

FYI, the nightly mojo extension for VSCode(/Codium) gets a little further. But I get some weird linker errors about missing symbols.

JIT session error: Symbols not found: [ _stdlib::builtin::str::str[::Stringable]($0),T=move::Move.__str__, _pile::Pile::playable(pile::Pile), _board::SeahavenBoard::playable_for_column(board::SeahavenBoard,::Int) ]

JIT session error: Symbols not found: [ _stdlib::builtin::str::str[::Stringable]($0),T=move::Move.__str__, _pile::Pile::playable(pile::Pile), _board::SeahavenBoard::playable_for_column(board::SeahavenBoard,::Int) ]

seems like maybe template expansion is not working properly? Or maybe this is happening only in the debugger because it's trying to print something that doesn't get printed during normal execution I got this working. I had to do a few things:

richard.kissOP•4mo ago

1. use Formattable trait https://docs.modular.com/mojo/stdlib/utils/format/Formattable instead of Stringable

Formattable | Modular Docs

The Formattable trait describes a type that can be converted to a stream of UTF-8 encoded data by writing to a formatter object.

richard.kissOP•4mo ago

2. change top level var constant-ish values to alias values (I also started using Optional instead of my home-grown wrapper, but not clear that was a problem)

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