There is a specific kind of frustration reserved for mobile developers transitioning to Kotlin Multiplatform (KMP). You have your shared logic compiling perfectly in Android Studio. Your unit tests are green. You open Xcode, hit Cmd + B , and are immediately greeted by a red error: "No such module 'shared'" or a cryptic failure in the script phase embedAndSignAppleFrameworkForXcode . This is the "Hello World" of KMP configuration issues. It usually isn't a code problem; it is a toolchain orchestration problem. This guide bridges the gap between Gradle and Xcode. We will dissect why the toolchains disconnect, how to verify your architecture targets, and how to permanently fix the "No such module" error using modern KMP best practices. The Root Cause: The Gradle-Xcode Handshake To fix the error, you must understand the build pipeline. Xcode does not know how to compile Kotlin. It relies on a "Run Script" build phase to delegat...
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