cannot fit requested classes in a single dex file (# methods: 99195....

 The error message "cannot fit requested classes in a single dex file (# methods: 99195....)" indicates that the number of methods in your Android app exceeds the limit that can be contained in a single dex (Dalvik Executable) file. This limit is 65,536 methods per dex file.

To resolve this issue, you can use one or more of the following solutions:

1. Enable multidex: Multidex is a mechanism that allows your app to have multiple dex files, thus increasing the method limit. To enable multidex, add the following line to your app's build.gradle file:

   javascript
   android {
       defaultConfig {
           ...
           multiDexEnabled true
       }
       ...
   }
   

   You also need to add the multidex support library to your app's dependencies:

   python
   dependencies {
       implementation 'androidx.multidex:multidex:2.0.1'
       ...
   }
   

2. Remove unused code: You can reduce the number of methods in your app by removing unused code. Use tools such as ProGuard or R8 to remove unused code during the build process.

3. Use dynamic feature modules: If your app uses dynamic feature modules, you can split the app's codebase into smaller modules, each with its own dex file. This can help reduce the method count per dex file.

4. Use Android App Bundles: Android App Bundles is a publishing format that allows you to create and publish a single artifact that includes your app's code, resources, and native libraries. This format can help reduce the app size and the number of methods per dex file.

By using one or more of these solutions, you can overcome the "cannot fit requested classes in a single dex file" error and successfully build your Android app.