Unable to build PowerApps component from Microsoft Sample - TypeError: Cannot create property 'pos' on string 'IInputs'

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Posted on by Ajithnair621

Hi,

I am trying to work on the Model Driven app Grid control Sample.

https://github.com/microsoft/PowerApps-Samples/tree/master/component-framework/ModelDrivenGridControl

I ran "npm install" as suggested in the link above. I keep getting an error "TypeError: Cannot create property 'pos' on string 'IInputs'" while trying to build.

After going through few articles I executed the below command and I still don't have the manifest TypeScript file generated.

"npm run refreshTypes"

I further referred to below community post, performed the steps mentioned there and still facing the same issue.

https://powerusers.microsoft.com/t5/Power-Apps-Pro-Dev-ISV/unable-to-build-any-PCF-control-project-getting-the-error-pcf/td-p/2121082

Typescript is now installed as mentioned in the above post.

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Power Apps component framework

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Ajithnair621 83 on at

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Re: Unable to build PowerApps component from Microsoft Sample - TypeError: Cannot create property 'pos' on string 'IInputs'

fixed by npm install --save-dev typescript@4

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LR-16100108-0 2 on at

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Unable to build PowerApps component from Microsoft Sample - TypeError: Cannot create property 'pos' on string 'IInputs'

Running "pcf-scripts clean" worked for me

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