Cannot convert nil to type x

Question

Consider the following example: ``` lock.RLock() var product *Product if store[productId] != nil { //cannot convert nil to type Product product = &Product{} *product = *store[productId] //invalid indirect of store[productId] (type Product) } lock.RUnlock() ``` The exceptions are as commented per line and i don't really get what i am doing wrong.. `store` is a `map[int]Product` any ideas?

Accepted Answer

You are using `store` as if it were declared as:

```
store := make(map[int]*Product)
```

Cannot convert nil to type x

Solution

Problem