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Shared variables can return the following error codes. Refer to the KnowledgeBase for more information about correcting errors in LabVIEW.

Code	Description
−1950679040	The value from this shared variable might not be the most current value from the data source.
−1950679039	Sensor failure
−1950679038	General device error response.
−1950679037	Server failure.
−1950679036	General communications failure.
−1950679034	The shared variable has no value.
−1950679033	The shared variable is inactive.
−1950679032	Sensor inaccurate
−1950679031	Engineering unit limits exceeded.
−1950679030	Unspecified error
−1950679029	Math error
−1950679028	Communications link failure
−1950679027	NI-PSP has not connected to the server yet
−1950679026	DNS lookup failed for the server.
−1950679025	The server is not reachable.
−1950679024	Service lookup failed for the server.
−1950679023	The connection to the server was disconnected.
−1950679022	The process was not found or is not responding.
−1950679021	Failed to resolve URL for this shared variable.
−1950679020	Read access is denied to the shared variable.
−1950679019	Subscribe failed.
−1950679018	Invalid URL for this shared variable.
−1950679016	Invalid float value.
−1950679015	Invalid Boolean value.
−1950679014	Value attribute not found.
−1950679013	Invalid access type.
−1950679012	Missing access type.
−1950679011	Invalid URL syntax.
−1950679010	Shared variable is bound but the path or URL is not specified.
−1950679009	A path and URL are both specified.
−1950679008	Invalid value for the Bind to Source option. On the Variable page of the Shared Variable Properties dialog box, verify the values of the options that are enabled when you place a checkmark in the Bind to Source checkbox.
−1950679007	A value is missing for the Bind to Source option. On the Variable page of the Shared Variable Properties dialog box, verify the values of the options that are enabled when you place a checkmark in the Bind to Source checkbox.
−1950679006	Invalid value for Single Writer option. This option is available only for network-published shared variables.
−1950679005	You must select a name for the shared variable.
−1950679001	Buffer size must be greater than 1.
−1950679000	Array length must be greater than or equal to 2.
−1950678999	Data points in waveform must be greater than or equal to 1.
−1950678998	Global variables can only be accessed from the local machine.
−1950678997	You cannot use a Variable Node of this type on this target.
−1950678996	The variable configuration is invalid. Edit the variable properties to correct the configuration.
−1950678995	Variable has undefined data type.
−1950678994	Variable has invalid data type.
−1950678993	The Raw Full Scale value must be greater than the Raw Zero Scale value.
−1950678992	The Raw Scale and/or Engineering Scale is invalid.
−1950678991	The Engineering Full Scale value should not be equal to Engineering Zero Scale value.
−1950678990	Scaling type attribute not specified.
−1950678989	Scaling ranges not fully specified.
−1950678988	BuffSize, ElemSize, and PointsPerWaveform must be greater than or equal to 1.
−1950678987	This piece of configuration does not exist for this type of variable.
−1950678986	Unspecified shared variable error.
−1950678985	An item name cannot start with a single quote(') or contain any of the following characters: / \ \r \n.
−1950678984	Variable names can have a maximum of 255 characters.
−1950678983	The array sizes in the network buffer must be greater than or equal to the array sizes in the real-time FIFO buffer. The waveform sizes in the network buffer must be greater than or equal to the waveform sizes in the real-time FIFO buffer. To correct this error, ensure that the values of the Array Size and Waveform Size options on the Variable page of the Shared Variable Properties dialog box are greater than or equal to the corresponding values of the Array Size and Waveform Size options on the Real-Time FIFO page of the Shared Variable Properties dialog box.
−1950678982	The shared variable client-side read buffer is full.
−1950678981	The shared variable client-side read buffer overflowed.
−1950678980	The shared variable server-side write buffer is full.
−1950678979	The shared variable server-side write buffer overflowed.
−1950678978	A shared variable may only be added to a project library.
−1950678977	Unable to deploy the library because the name is reserved. You cannot deploy a library named "System", "LV", or "FP".