Better diagnostic exception message in MissingMainCoroutineDispatcher

Thomas-Vos · Dec 10, 2019 · 6cb317b · 6cb317b
1 parent c02648b
commit 6cb317b
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/kotlinx-coroutines-core/common/src/internal/Scopes.kt b/kotlinx-coroutines-core/common/src/internal/Scopes.kt
@@ -36,5 +36,5 @@ internal open class ScopeCoroutine<in T>(
 internal class ContextScope(context: CoroutineContext) : CoroutineScope {
  override val coroutineContext: CoroutineContext = context
  // CoroutineScope is used intentionally for user-friendly representation
- override fun toString(): String = "CoroutineScope(coroutineContext = $coroutineContext)"
+ override fun toString(): String = "CoroutineScope(coroutineContext=$coroutineContext)"
 }
diff --git a/kotlinx-coroutines-core/jvm/src/internal/MainDispatchers.kt b/kotlinx-coroutines-core/jvm/src/internal/MainDispatchers.kt
@@ -89,7 +89,8 @@ private class MissingMainCoroutineDispatcher(
  if (cause == null) {
  throw IllegalStateException(
  "Module with the Main dispatcher is missing. " +
- "Add dependency providing the Main dispatcher, e.g. 'kotlinx-coroutines-android'"
+ "Add dependency providing the Main dispatcher, e.g. 'kotlinx-coroutines-android' " +
+ "and ensure it has the same version as 'kotlinx-coroutines-core'"
  )
  } else {
  val message = "Module with the Main dispatcher had failed to initialize" + (errorHint?.let { ". $it" } ?: "")