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kotlinlang

Hi.  I am new to Kotlin.  Question, how to prevent runtime errors in this case?

We had code like this:
```private fun buildClient(ten: String?) = BaseApiUrlBuilder(baseUrl, ten).build()
        .let(defaultWebClientBuilder::baseUrl)
        .build()```
and BaseApiUrlBuilder looked like this
```class BaseApiUrlBuilder(
    private val url: String,
    private val ten: String? = null,
) {```
then BaseApiUrlBuilder was changed to:
```class BaseApiUrlBuilder(
    private val url: String,
    private val ten: String? = null,
    private val localPort: Long = 8080 
) {```
And we did not get a compiler error but later got a runtime error on the first block of code.

How can runtime errors like this be prevented?  By using named arguments and having Detekt enforce named arguments?  Other insights?   Thanks.

this should not result in a runtime error, unless the second change was in a separate artifact and the first was not recompiled

if they are in separate artifacts, then you need to be aware of ABI compatibility. adding parameters, default or not, is not ABI compatible.

<@U04T2DVLZ62> what runtime error did you get? Was it  `NoSuchMethodError`?