is there a way to debug why the kotlin daemon isn t working

Question

is there a way to debug why the kotlin daemon isn t working we are getting ```Could not perform incremental compilation Could not connect to Kotlin compile daemon Could not connect to kotlin daemon Using fallback strategy ``` since we upgraded from 1 4 31 to 1 5 10 but i m not sure what to file in a bug or anything

eygraber · Answer

I occasionally see that message when there s an OOM

Alexey Belkov [JB] · Answer

You could try to check Gradle debug logs and Kotlin daemon log <https youtrack jetbrains com issue KT 27369 focus=Comments 27 3109114 0 0>

Josh Feinberg · Answer

from the gradle debug logs it looks like it has an error when trying to connect to the daemon due to a version incompatibility we have our build scripts in here which uses the embedded kotlin in gradle at 1 4 X so it seems like the daemons are created using that version and then they can t create new ones for 1 5 X i think thats why downgrading to 1 4 X allows the daemon to work

Josh Feinberg · Answer

```2021 06 23T14 42 48 773 0500 INFO org gradle api Task i starting the daemon as Users joshfeinberg Library Java JavaVirtualMachines adopt openjdk 11 jdk Contents Home bin java cp Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin compiler embeddable 1 5 10 9c35134a025cab7a1e6eee0d87d241c2f30c1218 kotlin compiler embeddable 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin reflect 1 5 10 d6c70f3c0df2457ea0095c61c1fc1188017dc3bc kotlin reflect 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin stdlib 1 5 10 da6a904b132f0402fa4d79169a3c1770598d4702 kotlin stdlib 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin script runtime 1 5 10 69bad0ece91b0797055aeadbd44dc742c458398b kotlin script runtime 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin daemon embeddable 1 5 10 d06ad33b62b041dae0609f830c3b48135d53b8bc kotlin daemon embeddable 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains intellij deps trove4j 1 0 20181211 216c2e14b070f334479d800987affe4054cd563f trove4j 1 0 20181211 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains annotations 13 0 919f0dfe192fb4e063e7dacadee7f8bb9a2672a9 annotations 13 0 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin stdlib common 1 5 10 6b84d926e28493be69daf673e40076f89492ef7 kotlin stdlib common 1 5 10 jar Djava awt headless=true Djava rmi server hostname=127 0 0 1 Xmx3641m Dkotlin environment keepalive ea org jetbrains kotlin daemon KotlinCompileDaemon daemon runFilesPath Users joshfeinberg Library Application Support kotlin daemon daemon autoshutdownIdleSeconds=7200 daemon compilerClasspath Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin compiler embeddable 1 5 10 9c35134a025cab7a1e6eee0d87d241c2f30c1218 kotlin compiler embeddable 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin reflect 1 5 10 d6c70f3c0df2457ea0095c61c1fc1188017dc3bc kotlin reflect 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin stdlib 1 5 10 da6a904b132f0402fa4d79169a3c1770598d4702 kotlin stdlib 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin script runtime 1 5 10 69bad0ece91b0797055aeadbd44dc742c458398b kotlin script runtime 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin daemon embeddable 1 5 10 d06ad33b62b041dae0609f830c3b48135d53b8bc kotlin daemon embeddable 1 5 10 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains intellij deps trove4j 1 0 20181211 216c2e14b070f334479d800987affe4054cd563f trove4j 1 0 20181211 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains annotations 13 0 919f0dfe192fb4e063e7dacadee7f8bb9a2672a9 annotations 13 0 jar Users joshfeinberg gradle caches modules 2 files 2 1 org jetbrains kotlin kotlin stdlib common 1 5 10 6b84d926e28493be69daf673e40076f89492ef7 kotlin stdlib common 1 5 10 jar 2021 06 23T14 42 48 773 0500 INFO org gradle api Task i Received the message signalling that the daemon is ready 2021 06 23T14 42 48 773 0500 INFO org gradle api Task i new daemon started trying to find it 2021 06 23T14 42 48 773 0500 INFO org gradle api Task i found daemon on port 17042 37 ms old trying to connect 2021 06 23T14 42 48 773 0500 INFO org gradle api Task i cannot connect to registry org jetbrains kotlin daemon common LoopbackNetworkInterface$ClientLoopbackSocketFactory local class incompatible stream classdesc serialVersionUID = 6143155864063642633 local class serialVersionUID = 2267640376242766426 2021 06 23T14 42 48 773 0500 INFO org gradle api Task i found fresh run file Users joshfeinberg Library Application Support kotlin daemon kotlin daemon 2021 06 23T19 42 48 612Z bfba3278bd8585bbb9367c8bb4ac6df9 17042 run 37 ms old but no daemon ignoring it 2021 06 23T14 42 48 773 0500 INFO org gradle api Task i found daemon on port 17747 1462 ms old trying to connect 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i cannot connect to registry org jetbrains kotlin daemon common LoopbackNetworkInterface$ClientLoopbackSocketFactory local class incompatible stream classdesc serialVersionUID = 6143155864063642633 local class serialVersionUID = 2267640376242766426 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i found fresh run file Users joshfeinberg Library Application Support kotlin daemon kotlin daemon 2021 06 23T19 42 47 186Z bfba3278bd8585bbb9367c8bb4ac6df9 17747 run 1462 ms old but no daemon ignoring it 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i found daemon on port 17042 139 ms old trying to connect 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i cannot connect to registry org jetbrains kotlin daemon common LoopbackNetworkInterface$ClientLoopbackSocketFactory local class incompatible stream classdesc serialVersionUID = 6143155864063642633 local class serialVersionUID = 2267640376242766426 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i found fresh run file Users joshfeinberg Library Application Support kotlin daemon kotlin daemon 2021 06 23T19 42 48 612Z bfba3278bd8585bbb9367c8bb4ac6df9 17042 run 139 ms old but no daemon ignoring it 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i found daemon on port 17747 1564 ms old trying to connect 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i cannot connect to registry org jetbrains kotlin daemon common LoopbackNetworkInterface$ClientLoopbackSocketFactory local class incompatible stream classdesc serialVersionUID = 6143155864063642633 local class serialVersionUID = 2267640376242766426 2021 06 23T14 42 48 774 0500 INFO org gradle api Task i found fresh run file Users joshfeinberg Library Application Support kotlin daemon kotlin daemon 2021 06 23T19 42 47 186Z bfba3278bd8585bbb9367c8bb4ac6df9 17747 run 1564 ms old but no daemon ignoring it 2021 06 23T14 42 48 775 0500 WARN org gradle api Task Could not perform incremental compilation Could not connect to Kotlin compile daemon 2021 06 23T14 42 48 775 0500 WARN org gradle api Task Could not connect to kotlin daemon Using fallback strategy ```