<Type inference failed: Not enough information to ...

# stackoverflow

[user]

Type inference failed: Not enough information to infer parameter T in fun &lt;T : View!&gt; findViewById(p0: Int): T! Please specify it explicitly
*i was learning kotlin and in the starting i got this error *
**Type inference failed: Not enough information to infer parameter T in fun findViewById(p0: Int): T!
Please specify it explicitly.
**
package com.example.myapplication_weight
import android.support.v7.app.AppCompatActivity
import android.os.Bundle

class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)...