Unable to upgrade v2.1.0

[minorlai]

Note:

An crash issue will be ignored & closed in a week without logs.

The language of MMKV

e.g. Objective-C, Swift, Java, or Kotlin

Kotlin

The version of MMKV

e.g. v1.2.2
Note: For versions older than the latest version, please upgrade before posting any issue.
We don't have much time for old version tech support.

v2.1.0

The platform of MMKV

e.g. iOS or Android

Android

The installation of MMKV

e.g. Cocoapods, Maven, or Git clone

Maven

What's the issue?

For old projects, projects with Kotlin versions below 1.8 cannot be upgraded to higher versions, and cannot be upgraded to MMKV v2.1.0

[lingol]

How about upgrading your kotlin version?

[minorlai]

目前项目的架构不支持升级 kotlin1.8 的版本，所以无法升级 v2.1.0 的 mmkv

[lingol]

I've never thought that upgrading Kotlin would be a problem. If it's such a pain for some users, we might downgrade it to Kotlin 1.9.x as before.

[minorlai]

Old projects are still using databinding, which is not allowed in kotlin1.8.x, which is undoubtedly a very large workload.

[lingol]

Wait what, you can't even upgrade to Kotlin 1.8.x you said?

Can you upgrade to MMKV 2.0.2?

[minorlai]

2.0.2 can be upgraded successfully

[lingol]

Then why did said you can't upgrade to kotlin 1.8.x? MMKV 2.0.2 is Kotlin 1.9.x.

[minorlai]

There is no problem with upgrading to 2.0.2, but when upgrading to 2.1.0, the local kotlin needs to be upgraded to 1.9.x during compilation. Are there any other libraries added in the 2.1.0 version? The current kotlin version is 1.7.21

[lingol]

I've no idea. Can you provide a demo project to reproduce this issue?

[minorlai]

Upgrade to 2.1.0, compile time:
e: Incompatible classes were found in dependencies. Remove them from the classpath or use '-Xskip-metadata-version-check' to suppress errors
e: /Users/allen/.gradle/caches/transforms-3/47abdf45a5bc13cd3cab29ee09be8dbb/transformed/jetified-annotation-jvm-1.9.1.jar!/META-INF/annotation.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.9.0, expected version is 1.7.1.

2.0.2 No problem

[minorlai]

Upgrade to 2.1.0, compile time: e: Incompatible classes were found in dependencies. Remove them from the classpath or use '-Xskip-metadata-version-check' to suppress errors e: /Users/allen/.gradle/caches/transforms-3/47abdf45a5bc13cd3cab29ee09be8dbb/transformed/jetified-annotation-jvm-1.9.1.jar!/META-INF/annotation.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.9.0, expected version is 1.7.1.

2.0.2 No problem

This problem is a problem that occurs when compiling after upgrading

[lingol]

I hate to repeat myself but you got to provide a reproducible demo project or we will have to ignore the issue for no way to investigate.