getting an error while looping the data

[dinesh2216]

Hello i am watching na 25hr pytorch course

code
'' epochs = 1
for epoch in range(epochs):
model_1.train()
y_pred = model_1(X_train)
loss = loss_fun(y_pred, y_train)
optimizer.zero_grad()
loss.backward()
optimizer.step()

''

[Acquiesense]

loss = loss_fn not loss_fun, unless you've changed the name of the variable before the for loop.
Idk about the Tensor error