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Error Message: 'No Metadata Class Defined for Data Contract Object'

  • Updated on Mar 27, 2025
  • Published on Mar 20, 2024
  • 1 minute(s) read
  • Alice Petruzzella
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This article provides a solution for the following error that maybe appear in AX 2012:

Error

No metadata class defined for data contract object.

This error is caused by custom code and occurs after an upgrade from an older Lasernet Connector version to 4.2.x.x.

Resolution

To correct this, go through all your LACCustomCode one by one and change the code according to the following image. This is an example from an older Lasernet Connector version and version 4.2.x.x:

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