question about tl.store() ValueError('Value argument cannot be block type if pointer argument is not a block')

[eteliver]

When I tried to implement an vector addition using triton.I found that if you let idx be a block,then Z[idx] = X[idx]+Y[idx] can be implemented to tl.store(Z+idx,tl.load(X+idx)+tl.load(Y+idx)),However, when I tried to implement Z[0] = X[idx]+Y[idx] in triton,there would be an error. Although I understand the reason of this error. I still want to find a solution.