Salesforce generates “Unknown Exception” during Deployment

Cloudy Development

Have you ever encountered an “Unknown exception” error message when trying to deploy/validate a Deployment Set ? Something like the following ?


It doesn’t really provide you with a lot of information, so no idea what to do right ?Before contacting Salesforce Support, maybe it worths giving a try to the following:

Go to the Developer Console and Clear the Heap Dumps !


Hope it helps…

P.S. The explanation behind this, is that the Heap Dumps are also generated during deployment and this requires too much memory 😉

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