You need to unpack the FMU at a certain location and set the resource folder.

See the spec:
https://github.com/modelica/fmi-standar … -2.0.2.pdf

fmi2Component fmi2Instantiate(fmi2String instanceName,

 fmi2Type fmuType,

 fmi2String fmuGUID,

 fmi2String fmuResourceLocation,    // <----- this needs to point to the place where you unpacked the FMU

 const fmi2CallbackFunctions* functions,

 fmi2Boolean visible,

 fmi2Boolean loggingOn);

You need to unpack the fmu to a directory and then give that directory as an URI via the fmuResourceLocation parameter when you call fmi2Instantiate.

Or you could use an existing C library that can load your FMU properly such as FMILIB: https://github.com/modelon-community/fmi-library

Thank you very much for answered my question.
I have solved this problem, and the reason is that the generated library is C library. I use the C + + platform.
Finally, thank you very much for your answer.

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