Compilation error: `Not Enough Information to Infer Type Variable R`

Kotlin / dataframe

Structured data processing in Kotlin

https://kotlin.github.io/dataframe/overview.html

Apache License 2.0

761 stars 48 forks source link

Compilation error: `Not Enough Information to Infer Type Variable R` #732

Open devcrocod opened 2 weeks ago

devcrocod commented 2 weeks ago

I got exception while running tests (master branch 1a818ca) : Not enough information to infer type variable R

In ApiLevels.kt:

https://github.com/Kotlin/dataframe/blob/1a818ca7de494948ecdbedbc49958f75a1d7c48d/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/api/ApiLevels.kt#L25:14
https://github.com/Kotlin/dataframe/blob/1a818ca7de494948ecdbedbc49958f75a1d7c48d/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/api/ApiLevels.kt#L25:60
https://github.com/Kotlin/dataframe/blob/1a818ca7de494948ecdbedbc49958f75a1d7c48d/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/api/ApiLevels.kt#L133:12
https://github.com/Kotlin/dataframe/blob/1a818ca7de494948ecdbedbc49958f75a1d7c48d/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/api/ApiLevels.kt#L133:46

Jolanrensen commented 2 weeks ago

These tests are @Ignored. Actually, most of them fail because DataFrame.read("titanic.csv"): dataframe/core/titanic.csv (No such file or directory). And this is by design I think. They're not supposed to run, they're just there to be exported by Korro.

devcrocod commented 2 weeks ago

Yea, I know that these tests are ignored. But there is an error with compilation tests

Jolanrensen commented 2 weeks ago

Hmm that I cannot reproduce, the tests compile and run fine on my end :/ Maybe someone else can reproduce it?