Error: the model build step failed.

[pkuzhangtao]

Hi,

I'm having trouble building my model and kept getting following error:

foo <- mread("pk1",modlib())
Building pk1 ... error.
---:: stderr ::---------------------------------------------

---

Error: the model build step failed.

I have installed Rtools, and make sure the PATH environment variable gets set. Additional information: R-version 4.1.0; mrgsolve-version 0.11.1; Rtools-version 40.

I have searched a lot about this problem but still don't know how to fix it. Could you please have a look at this? Thank you very much.