Im having a case where graph GraphA is in MainModu...

# compose-destinations

[Robert C]

Im having a case where graph GraphA is in MainModule and GraphB is in SecondaryModule

Composable is in MainModule

annotating ComposableA() with
@Destination<GraphA>

works great but adding a second destination

@Destination<GraphB>

results in compilation error, any clue whats wrong or if this is achievable?

e: [ksp] java.lang.NullPointerException
	at com.ramcosta.composedestinations.codegen.commons.RawNavGraphTreeBuilderKt.makeNavGraphTrees(RawNavGraphTreeBuilder.kt:73)
	at com.ramcosta.composedestinations.codegen.writers.ModuleOutputWriter.write(ModuleOutputWriter.kt:28)
	at com.ramcosta.composedestinations.codegen.CodeGenerator.postValidateGenerate(CodeGenerator.kt:66)
	at com.ramcosta.composedestinations.codegen.CodeGenerator.generate(CodeGenerator.kt:49)
	at com.ramcosta.composedestinations.ksp.processors.Processor.process(Processor.kt:85)
	at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension$doAnalysis$8$1.invoke(KotlinSymbolProcessingExtension.kt:306)
	at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension$doAnalysis$8$1.invoke(KotlinSymbolProcessingExtension.kt:304)
	at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension.handleException(KotlinSymbolProcessingExtension.kt:410)
	at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension.doAnalysis(KotlinSymbolProcessingExtension.kt:304)
	at org.jetbrains.kotlin.cli.jvm.compiler.TopDownAnalyzerFacadeForJVM.analyzeFilesWithJavaIntegration(TopDownAnalyzerFacadeForJVM.kt:112)
	at org.jetbrains.kotlin.cli.jvm.compiler.TopDownAnalyzerFacadeForJVM.analyzeFilesWithJavaIntegration$default(TopDownAnalyzerFacadeForJVM.kt:77)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler$analyze$1.invoke(KotlinToJVMBytecodeCompiler.kt:256)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler$analyze$1.invoke(KotlinToJVMBytecodeCompiler.kt:247)
	at org.jetbrains.kotlin.cli.common.messages.AnalyzerWithCompilerReport.analyzeAndReport(AnalyzerWithCompilerReport.kt:115)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.analyze(KotlinToJVMBytecodeCompiler.kt:247)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli(KotlinToJVMBytecodeCompiler.kt:87)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli$default(KotlinToJVMBytecodeCompiler.kt:43)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:165)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:50)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:104)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:48)
	at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:101)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1523)
	at jdk.internal.reflect.GeneratedMethodAccessor98.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
	at java.rmi/sun.rmi.transport.Transport$1.run(Unknown Source)
	at java.rmi/sun.rmi.transport.Transport$1.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.rmi/sun.rmi.transport.Transport.serviceCall(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)

[Rafael Costa]

@Destination<GraphB> is in the same module as GraphB annotation?

[Robert C]

Yes

[Rafael Costa]

Can you copy paste the actual code? It’s a little difficult to understand exactly your setup.

[Rafael Costa]

I’m assuming there’s something wrong in your setup. In any case, the error should at least be more helpful. Once we identify the issue, I’ll improve the error message 🙂

[Rafael Costa]

Also what version are you using?

[Robert C]

I will try to send some snippets, can't copy paste actual code though :( will do that later as I'm out now

[Robert C]

As far as I remember I was using latest beta

[Robert C]

ok i think ive made some mistake so both of these graphs are in different modules but im connecting both of these in Main module

sorry for misguiding but im getting lost in all of these, just refactored almost whole app to use you'r navigation from navcomponent which works great so far 🙌

version 2.0.0-beta09


@Destination<MainModuleSubGraph>()
@Destination<ModuleBSubgraph1>() <- adding this causes compilation error
@Composable
fun MainModuleScreenComposable(){...}

@NavGraph<MainGraph>()
annotation class MainModuleSubGraph

@NavGraph<ExternalModuleGraph>()
annotation class ModuleBGraph

@NavGraph<ModuleBGraph>()
annotation class ModuleBSubgraph1

@NavHostGraph()
annotation class MainGraph {
    @ExternalNavGraph<ModuleBGraph>(start = true)
    companion object Includes
}

[Rafael Costa]

Yeah so ModuleBSubgraph1 is an annotation defined in another module (named moduleB) right? You cannot add destinations to graphs from other modules.

[Rafael Costa]

You can “include” a destination or graph from another module but not the other way around

[Robert C]

I see, thank you, is it possible to add a better error description though?

[Rafael Costa]

Yes definitely! Already on my todo list 🙂