Update README.md

README.md

@@ -67,6 +67,16 @@ Error: mkl-service + Intel(R) MKL: MKL_THREADING_LAYER=INTEL is incompatible wit
 ```
 You can solve it by reinstall numpy.
 
+3.
+```
+ImportError: 
+InternLM2Converter requires the protobuf library but it was not found in your environment. Checkout the instructions on the
+```
+You just need
+```
+pip install protobuf
+```
+
 ## Training
 1. Alignment module pretraining
 ```