>
>     auto lst = context.getResults.initAccounts(1);

fixed my issue, thanks. 


On Sunday, November 4, 2018 at 9:52:31 PM UTC+3:30, Kenton Varda wrote:
>
> This line:
>
>     auto lst = capnp::List< capnp::Text>::Builder();
>
> is basically constructing `lst` to be a null pointer. So when you try to 
> set a value through it, you get an exception (or a segfault).
>
> Try this:
>
>     auto lst = context.getResults.initAccounts(1);
>     lst.set(0, "reza");
>
> (The 1 is the size of the list.)
>
> On Sun, Nov 4, 2018 at 10:09 AM <[email protected] <javascript:>> wrote:
>
>> Hi, I'm looking for a way to initialize a List<Text> as result of 
>> interface method. here is my interface design:
>>
>> interface AccountManager {
>>     echo @0 (title: Text) -> (result: Text);
>>     list @1 ()        -> (accounts : List(Text));
>>     # get  @1 (title: Text) -> (account: Account);
>> }
>>
>>
>> also I use following code for my server implementation:
>>
>>     ::kj::Promise<void> list(ListContext context) override {
>>
>>         auto lst = capnp::List< capnp::Text>::Builder();
>>         lst.set(0, "reza");
>>         context.getResults().setAccounts(lst);
>>
>>         return kj::READY_NOW;
>>     }
>>
>>
>> but I receive exception about list size in client. could anyone please 
>> help me about this error?
>>
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