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Description
TypeError: Cannot read properties of null (reading 'toString')
This rather cryptic error is thrown from:
rust.aws-cdk-lambda/lib/build.ts
Line 178 in 73b8cdb
console.error(cargo.stderr.toString().trim()); |
... when trying to call cargo.stderr.toString()
. The reason is that cargo.stderr
may be null
if a cargo
executable was not found by the call to spawnSync('cargo' /* ... other args... */)
.
Troubleshooting:
If, when you run which cargo
in your usual shell, you get cargo not found
or similar, then you need to make sure the cargo
executable is both installed and on your shell's path.
Recommendations:
I think ideally this library should have some way of double-checking whether cargo
is indeed on-path (I'm not sure what the usual approach for this is), but this kind of environment health-check may arguably be out-of-scope.
At the very least, it would save some onboarding friction if this library could, in the event of cargo.stderr
being null
, suggest that perhaps cargo is either not installed or not on path.