Is there any conflict in the story "Gooseberries"?
Yes, there are definitely conflicts in "Gooseberries." Some of these conflicts revolve around Ivan and Nikolai's views of the world, and of their own actions. Where Nikoliai saw himself as pursuing his dream, Ivan saw him as selfish. Where Nikolai found the taste of the gooseberries wonderful, Ivan found them bitter: they are not even living in the same world.
Others are conflicts in the larger framing story. Ivan has told this story about the past, but Aliokhin and Bourkin aren't satisfied with it. Here again Ivan's in conflict with the world view of others, and with what is found satisfying.