TypeError: Cannot delete property of objectTypeError: Cannot delete property of object
An attempt was made to delete a non-configurable property of an object in strict mode.
ERR_SERVER_ALREADY_LISTENThe server.listen() method was called when the server is already listening.
Your code calls server.listen() multiple times on the same server instance. This can happen when initialization code runs twice, or in hot-reload scenarios where the server is not properly closed before restarting.
Call server.listen() only once. Close the server with server.close() before calling listen() again. Add a guard: if (!server.listening) server.listen(port). Fix hot-reload to properly close and recreate the server.
TypeError: Cannot delete property of objectAn attempt was made to delete a non-configurable property of an object in strict mode.
EHOSTUNREACHThe target host is unreachable, typically due to network routing issues.
DOMException: DataCloneErrorAn object could not be cloned using the structured clone algorithm.
TypeError: x is not iterableA value that is not iterable was used where an iterable was expected, such as in a for...of loop or spread operator.
SyntaxError: Applying delete to unqualified name in strict modeThe delete operator was used on a plain variable name in strict mode, which is not allowed.
TypeError: Cannot assign to read only propertyAn attempt was made to write to a property that is read-only, either because the object is frozen or the property is defined as non-writable.