In Protocol Buffers, how to import a file from the upper level directory?

Question

I have the following code in a protocol buffer file(pcfg_lm.proto):

import \"../types/language.proto\";

package nlp;

message PCFGProto {
  required Languag         


        

Answer 1

You can use the --proto_path= directive to specify which directories to search for imports. It can be used multiple times if needed.

The correct --proto_path will depend on how the package is defined in the imported file (language.proto).

1. If the imported file (language.proto) contains package types;

   specify --proto_path=Parent directory and change the import to

   import "types/language.proto";

2. If the imported file has no package

   specify --proto_path=Parent directory/types and change the import to

   import "language.proto";