Comments (1)
Hey @maxhayward,
You need to build your function locally in order to execute it. Building is required if the function type is Image. However if you are using an interpreted language like python and if you are using Zip lambda functions, you can use sam local invoke
directly (however this one will also fail if you have external dependencies).
When you first run sam init
and instantiate the application template, you should see that ImageUri
is missing in the template. Instead it contains build time parameters which is required to build your function locally (like DockerTag
which will be used to tag image locally).
After you run sam build
locally, you can check built template under .aws-sam/build/template.yaml
and you can see that it has ImageUri
field with some values which is pointing to locally build image (eg. helloworldfunction:python3.12-v1
).
tl;dr sam local invoke
needs everything to be ready before executing the function locally. We can update our error message to ask users to run sam build
which could help them to fix this issue.
from aws-sam-cli.
Related Issues (20)
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from aws-sam-cli.