Stream: git-wasmtime

Topic: wasmtime / issue #14099 List all supported exports in err...

Wasmtime GitHub notifications bot (Aug 10 2026 at 13:19):

tschneidereit opened issue #14099:

When using wasmtime run with a component that doesn't export wasi:cli/run at a supported version, we currently print a message along the lines of

Error: failed to run main module `target/wasm32-wasip2/debug/test_wasip3.wasm`

Caused by:
    no exported instance named `wasi:cli/run@0.2.12`

Ideally, we'd instead print something like this:

Error: failed to run component `target/wasm32-wasip2/debug/test_wasip3.wasm`

The component doesn't export any of the supported handlers. The component must export at least one of:
    an instance of the interface `wasi:cli/run@0.2`
    an instance of the interface `wasi:cli/run@0.3`

Note the absence of a patch version: we support 0 of both, and shouldn't indicate a higher requirement than we actually have.

(Note also the change to the first line, replacing "main module" with "component" as well.)

Oh, and all of this applies to wasmtime serve with slight modifications as well.

Wasmtime GitHub notifications bot (Aug 10 2026 at 13:19):

tschneidereit added the wasmtime label to Issue #14099.

Wasmtime GitHub notifications bot (Aug 10 2026 at 15:48):

alexcrichton added the enhancement label to Issue #14099.

Last updated: Aug 30 2026 at 09:07 UTC