Can we declare a var Stable?

[h1teshtr1path1]

public type Post = {
    pid : Nat32; // Post Id
    uid : Nat32; // Speaker's User Id
    ppid : Nat32; // Parent Post Id
    xid : Nat32; // Xchange Id
    tid : Nat32; // Thread Id
    cid : Nat32; // Conversation Id = Discourse Id = Issue Id = Topic Id, etc.
    ........................................
  };



public type bufferPost = Buffer.Buffer<Post>;
private stable var container : Trie.Trie<Nat32, bufferPost> =  Trie.empty();

Above code is giving me error !
variable container is declared stable but has non-stable type
Trie/176<Nat32/12, bufferPost/78>

So, is this due to Buffer , I am using?
Can’t we declare a Trie stable which is using buffer as its Value?
I am using Buffer to get some optimisation instead of using arrays.
To get rid of above error , only way possible is to use arrays?

[HelloRickey]

This might help you, you don’t need to change the Array, just use the Buffer when using the append method.

What's the good way to add a new item in array?

ie. if I have the following: return Array.append<Project>(theProjectsNew, [newProject]); which appends a new object “newProject” to an array called “theProjectsNew” and replace it with: let theProjectsBuffer : Buffer.Buffer = Buffer.Buffer(theProjectsNew.size()); for (x in theProjectsNew.vals()) { theProjectsBuffer.add(x); }; theProjectsBuffer.add(newProject); return theProjectsBuffer.toArray(); the programatic results are the same … and the warning goes away … is this a valid way …

[h1teshtr1path1]

Can you help me with this ?
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