Error `symbol multiply defined`

[hexed jolt]

I have two contracts A and B, where B depends on A, and both of them have a function called initialize. When I run soroban contract build, I get the following error saying:

warning: Linking globals named 'initialize': symbol multiply defined!

error: failed to load bitcode of module "huma_config.huma_config.aa1236b3409665e3-cgu.0.rcgu.o":

If I rename one of the initialize function to something else then the error goes away. I'm not sure that's the right solution since the Token contract, which B depends on, also has a function called initialize and it works just fine. What's the cause of this error and what's the proper fix?

Thanks!

[amber prism]

it seems like both are being linked into the same library. you should only be building a single contractimpl normally, but here it seems like you're building two contractcs into one Wasm

[hexed jolt]

Got it. It's because I put the A's interface declaration into the same package as the implementation and imported both into B. Separating the interface out into its own package solved the problem. Thanks!

[sharp talon]

Yup separating the implementation and interface is the way to go with this one.