Extension Compilation failed – Business Central

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RockwithNav

8,637 Super User 2025 Season 2

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Hey Friends,

I just faced an error where in my solution was getting successfully compiled but at them time of publishing I was getting this error message where in system says –

Method:POST; Url:http://localhost:7049/BC180/dev/apps?tenant=default&SchemaUpdateMode=forcesync&DependencyPublishingOption=default; StatusCode:422; ReasonPhrase:Unprocessable Entity;

This is bit annoying because solution is getting compiled but system is unable to publish due to some error which is not clearly explanatory. A bit of struggle but then I saw there was actually a DLL file MSXML which was the trouble, though this comes in with the assembly package but I was bound it download it manually and put it in the ./Service/addin folder.

Put this path in the “al.assemblyProbingPaths”, as every dll path needs to be mentioned in here and then restart the Service. Package Successfully Published.