I receive this error when trying to open `bitcoin-qt` when compiling from `master`:

> terminate called after throwing an instance of 'std::runtime_error'
>   what():  JSON value is not a string as expected
> Aborted

No debug info is generated since the application isn't started.

I am running Qubes 4.0 fully updated, in a Debian-11 VM with normal networking. Intel x86_64
{
    if (IsArgNegated(arg)) return fs::path{};
    std::string path_str = GetArg(arg, "");
    if (path_str.empty()) return default_value;
    fs::path result = fs::PathFromString(path_str).lexically_normal();
    
    return result.has_filename() ? result : result.parent_path();
}
const fs::path& ArgsManager::GetBlocksDirPath() const
{
    LOCK(cs_args);
    fs::path& path = m_cached_blocks_path;
    
    
    if (!path.empty()) return path;
    if (IsArgSet("-blocksdir")) {
        path = fs::absolute(GetPathArg("-blocksdir"));
        if (!fs::is_directory(path)) {
            path = "";
            return path;
        }
    } else {
        path = GetDataDirBase();
    }
    path /= fs::PathFromString(BaseParams().DataDir());
    path /= "blocks";
    fs::create_directories(path);
    return path;
}
const fs::path& ArgsManager::GetDataDir(bool net_specific) const