Can't compile Kotlin Jackson Extensions readValue(File)-CodePudding

I am trying to use Kotlin Jackson extensions to do JSON conversions in my code. But for some reason, I am getting a syntax error when trying to use the readValue(File) function.

implementation 'com.fasterxml.jackson.module:jackson-module-kotlin:2.13.3'
---
import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
...
        private val objectMapper = jacksonObjectMapper()
...
            val factionList: List<Faction> = objectMapper.readValue<List<Faction>>(
                File(javaClass.classLoader.getResource("data/factions.json").file))

The error I get from the compiler is:

None of the following functions can be called with the arguments supplied.
readValue(JsonParser!, ResolvedType!)
...
[it lists all the valid function signatures ...]

However, none of the extension functions seem to be showing up in that list. If I click on the function and hit Cmd-B in IntelliJ, I am seeing the readValue(File) method in the extensions code.

I am confused why the function is not being found by the compiler.

CodePudding user response：

You're most likely missing the following import:

import com.fasterxml.jackson.module.kotlin.readValue

Forgot this a few times myself.