This error means that the VI which is downloaded to the FPGA was changed on the host/development system, but has not been recompiled. By recompiling it you resolve this problem.
When a LabVIEW FPGA VI is compiled for the FPGA, the bit stream, which will be downloaded to the FPGA, is stored in the VI file. When LabVIEW RT or LabVIEW Windows attempts to download the bit stream to the RIO card, it makes sure the bit stream corresponds to the VI source code in the same file. This is necessary so that the host application can properly communicate with the VI on the FPGA. If the two are not the same, this error is generated from the Open FPGA VI Reference function in the host application.
Christian L
NI Consulting Services
authored byChristian L, CLA
Systems Engineering Manager - Automotive and Transportation
NI - Austin, TX