I m trying to use a library via ```includeBuild nanotest ```

Question

I m trying to use a library via ```includeBuild nanotest ``` and ```testImplementation nanotest nanotest 0 1 ``` the build file of the library has this ```group = nanotest version = 0 1 ``` and the settings file this ```rootProject name = nanotest ``` but when i build gradle does not find it ```Could not resolve nanotest nanotest 0 1 Required by project ``` I use composite builds all the time and it just works but now i have no idea whats wrong

christophsturm · Answer

hmm i get this error message when i run it from the commandline

christophsturm · Answer

``` gt Could not resolve all task dependencies for configuration testRuntimeClasspath gt Could not resolve nanotest nanotest 0 1 Required by project gt The consumer was configured to find a runtime of a library compatible with Java 8 packaged as a jar and its dependencies declared externally as well as attribute org jetbrains kotlin platform type with value jvm However we cannot choose between the following variants of project nanotest compile default runtime testCompile testRuntime All of them match the consumer attributes Variant compile capability nanotest nanotest 0 1 declares a component as well as attribute org jetbrains kotlin platform type with value jvm Unmatched attributes Doesn t say anything about its component category required a library Doesn t say anything about how its dependencies are found required its dependencies declared externally Doesn t say anything about its target Java version required compatibility with Java 8 Doesn t say anything about its elements required them packaged as a jar Doesn t say anything about its usage required a runtime Provides attribute org jetbrains kotlin localToProject with value local to but the consumer didn t ask for it Variant default capability nanotest nanotest 0 1 declares a component as well as attribute org jetbrains kotlin platform type with value jvm Unmatched attributes Doesn t say anything about its component category required a library Doesn t say anything about how its dependencies are found required its dependencies declared externally Doesn t say anything about its target Java version required compatibility with Java 8 Doesn t say anything about its elements required them packaged as a jar Doesn t say anything about its usage required a runtime Provides attribute org jetbrains kotlin localToProject with value local to but the consumer didn t ask for it Variant runtime capability nanotest nanotest 0 1 declares a component as well as attribute org jetbrains kotlin platform type with value jvm Unmatched attributes Doesn t say anything about its component category required a library Doesn t say anything about how its dependencies are found required its dependencies declared externally Doesn t say anything about its target Java version required compatibility with Java 8 Doesn t say anything about its elements required them packaged as a jar Doesn t say anything about its usage required a runtime Provides attribute org jetbrains kotlin localToProject with value local to but the consumer didn t ask for it Variant testCompile capability nanotest nanotest 0 1 declares a component as well as attribute org jetbrains kotlin platform type with value jvm Unmatched attributes Doesn t say anything about its component category required a library Doesn t say anything about how its dependencies are found required its dependencies declared externally Doesn t say anything about its target Java version required compatibility with Java 8 Doesn t say anything about its elements required them packaged as a jar Doesn t say anything about its usage required a runtime Provides attribute org jetbrains kotlin localToProject with value local to but the consumer didn t ask for it Variant testRuntime capability nanotest nanotest 0 1 declares a component as well as attribute org jetbrains kotlin platform type with value jvm Unmatched attributes Doesn t say anything about its component category required a library Doesn t say anything about how its dependencies are found required its dependencies declared externally Doesn t say anything about its target Java version required compatibility with Java 8 Doesn t say anything about its elements required them packaged as a jar Doesn t say anything about its usage required a runtime Provides attribute org jetbrains kotlin localToProject with value local to but the consumer didn t ask for it The following variants were also considered but didn t match the requested attributes Variant apiElements capability nanotest nanotest 0 1 declares a library packaged as a jar and its dependencies declared externally as well as attribute org jetbrains kotlin platform type with value jvm Incompatible because this component declares an API of a component compatible with Java 14 and the consumer needed a runtime of a component compatible with Java 8 Variant runtimeElements capability nanotest nanotest 0 1 declares a runtime of a library packaged as a jar and its dependencies declared externally as well as attribute org jetbrains kotlin platform type with value jvm Incompatible because this component declares a component compatible with Java 14 and the consumer needed a component compatible with Java 8```

christophsturm · Answer

it seems that gradle thinks one library is for java 14 and one is for 1 8

christophsturm · Answer

adding this to the nanotest build fixes it ```tasks withType lt JavaCompile gt sourceCompatibility = 1 8 targetCompatibility = 1 8 ``` it already contained this ```tasks withType lt KotlinCompile gt kotlinOptions jvmTarget = 1 8 ``` and it contains no java sources