IC0536: Management canister has no method 'stable64_size'

Developers
1

Hey Guys,

since some time (unfortunately I wasn’t monitoring to know exactly when) we started to getting this error:

```
IC0536: Management canister has no method ‘stable64_size’
```

Was this method deprecated? We used this since some time to measure stable size usage and it also still documented in the interface spec: The Internet Computer Interface Specification | Internet Computer

The error happens on this subnet https://dashboard.internetcomputer.org/canister/dgnum-qiaaa-aaaao-qj3ta-cai when calling this method:


  public shared func get_stable64_size() : async Nat64 {
    await IC.ic.stable64_size();
  };

Which call stable64_size on aaaaa-aa via this IC service definition here: zone_availability_canister/src/IC.mo at master · diodechain/zone_availability_canister · GitHub

2

stable64_size is part of the System API, not the management canister interface. It has never been part of the management canister. The System API is meant to be called synchronously, and I would expect it to show up in this module if the core package would support that function