Android: error: cannot find symbol MmkvModule.install

[3DJakob]

I installed this module and successfully used it on iOS. I then preceded with following the steps for setting up android with reanimated installed copying the code from the example. It could not find the module so I had to add it manually by adding

include ':react-native-mmkv'
project(':react-native-mmkv').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-mmkv/android/')

to settings.gradle and in build.gradle adding

implementation project(':react-native-mmkv')

As described here: #37

Strangely enough, it had added the code implementation 'com.tencent:mmkv-static:1.0.10' there from before but with that code it simply cannot load the module.

However when I try to build the project in android studio it fails with:

/Users/jakob/coding/my-app/android/app/src/main/java/com/striveapp/StriveJSIPackage.java:17: error: cannot find symbol
        MmkvModule.install(jsContext, reactApplicationContext.getFilesDir().getAbsolutePath() + "/mmkv");
                  ^
  symbol:   method install(JavaScriptContextHolder,String)
  location: class MmkvModule

Am I missing something here? Perhaps the module gets loaded incorrectly and thus cannot run the function? Just a noob with android development here, please tell me if you need some other information.

[mrousavy]

Sorry I don't quite get the part with implementation 'com.tencent:mmkv-static:1.0.10' - where did that come from?

Does Android Studio underline the import com.reactnativemmkv.MmkvModule; line in StriveJSIPackage in red?

[3DJakob]

Hey! The 1.0.10 was in the file from the beginning so I replaced it with that other line. I guess it got there when it was trying to auto-link the dependency?

Yes android studio studio says "cannot resolve method 'install' in 'MmkvModule'

However, maybe the problem is before that. On this line public class StriveJSIPackage extends ReanimatedJSIModulePackage { it says cannot resolve symbol ReanimatedJSIModulePackage

The problem seems to be loading the Reanimated module 🤔

I have tried running yarn install react-native-reanimated, running version 2.0.1

Thank you for your time!

[mrousavy]

Could you share your versions? Reanimated, React Native, MMKV please

[3DJakob]

Sure!
react-native 0.63.2
react-native-reanimated 2.0.1
react-native-mmkv 1.0.10

Running android studio in rosetta on an M1 Mac could be related.

[mrousavy]

Hm, that's weird. Don't have an answer for this atm, I'll take a look when I have some free time

[mrousavy]

You could try to Cmd+Click the MmkvModule to find out if it actually exists as a class. Also try cleaning & rebuilding gradle

[3DJakob]

Weird indeed. Cmd+Clicking it takes me to the class. Tried cleaning and rebuilding without any luck.

[3DJakob]

Just to verify. This is the correct location for the JSIPackage right?

I'm also going to start a fresh project to see if I can get it working there.

[mrousavy]

Yes it is the correct location - can you send a screenshot from android studio of the entire JSI package file you created?

[3DJakob]

I think I solved it! I made a new scratch project to try this in. At first, I had to do steps described in #37. Then I got error finding symbol JSIModulePackage. I then imported it like this in the mainApplication.java:

import com.facebook.react.bridge.JSIModulePackage;

That snippet is from the reanimated docks https://docs.swmansion.com/react-native-reanimated/docs/installation/. And then voila it compiled! Haven't actually tried using the module yet but seems promising. It looks however like I already tried that in the main repository that has reanimated already but I will do some troubleshooting over there to see if I can get it working there as well.

[3DJakob]

Here is the screenshot you asked for:

Edit: Realized that I had played around with adding line 1 package as well as type for the class but it does not effect the error.

[3DJakob]

I think I solved it! I made a new scratch project to try this in. At first, I had to do steps described in #37. Then I got error finding symbol JSIModulePackage. I then imported it like this in the mainApplication.java:

import com.facebook.react.bridge.JSIModulePackage;

That snippet is from the reanimated docks https://docs.swmansion.com/react-native-reanimated/docs/installation/. And then voila it compiled! Haven't actually tried using the module yet but seems promising. It looks however like I already tried that in the main repository that has reanimated already but I will do some troubleshooting over there to see if I can get it working there as well.

This does not seem to be the issue in the main repository that uses the reanimated module, unfortunately.

[3DJakob]

So when I command+click the MmkvModule in my myAppNameJSIPackage.java I can't find any public function called install. Shouldn't there be one? I attached a screenshot with the file.

[mrousavy]

Oh jesus christ I just noticed you aren't on the latest MMKV version, you have to upgrade to 1.1.6!

[3DJakob]

Haha, I changed to the latest and it solved that problem! However, I'm getting other problems and I just cannot seem to get it to launch without crashing. However, since the problem described in this thread is resolved I will close this now. Thank you so much for your time and effort. Let's hope the android setup will be easier in the future!