Bug: sam build - ValueError

[franckpochet]

Description:

Try to run hello-world SAM sample localy in VSCode

Steps to reproduce:

Create the project hello-world with SAM
Open it in VSCode
Create a launch.json
Run the code in nodejs20.x

Observed result:

[info] Error: path is on mount 'E:', start on mount 'C:' (why?)
last stack trace:
File "E:\aws\AWSSAMCLI\runtime\Lib\site-packages\samcli\commands_utils\template.py", line 267, in _resolve_relative_to
return os.path.relpath(
^^^^^^^^^^^^^^^^
File "", line 783, in relpath

Expected result:

Code run :-)

Additional environment details (Ex: Windows, Mac, Amazon Linux etc)

Windows 11 23H2
AWS CLI : 2.18.6
SAM CLI : 1.125.0

Thank you

[franckpochet]

Sorry forgot to indicate that I'm using VSCode 1.94.1 with AWSToolkit 3.28.0

[mndeveci]

Thanks for reporting this issue. Can you explain how did you created launch.json file? I saw taht you mentioned a version for the AWSToolkit extension, if you are using that, it should have a shortcut to invoke your function directly (it should be visible when you open your lambda handler). Can you try with that to see if it has any issues?

[franckpochet]

Hello,
To create the lauch.json I add a configuration in the run menu. I don't saw any shortcut to invoke directly the function, where this shortcut must be shown?
Thank you

[mndeveci]

You should see Run Locally or Debug Locally links like this

See: https://aws.amazon.com/visualstudiocode/

With those shortcuts, launch.json configuration should be automatically added by the AWS extension.

[franckpochet]

Hi,
No I don't have it, but perhaps is because I created the project from a command windows with "sam init" and not from VSCode?
Thank you
Regards

[mndeveci]

But this should work even if you open your project. Can you make sure your root folder is the project's root folder? Also, can you make sure you open the lambda function handler? You should be able to see these shortcuts above.

[franckpochet]

Hello,
Yes I'm sure for both and no I don't see the shortcut.
Regards
Franck