---
title: Missing module for canImport (CanImportMissingModule)
framework: swift-compiler
role: article
role_heading: Article
path: swift-compiler/documentation/diagnostics/canimport-missing-module
---

# Missing module for canImport (CanImportMissingModule)

Warnings that indicate a versioned #if canImport(<ModuleName>, _version: <version>) or #if canImport(<ModuleName>, _underlyingVersion: <version>) directive could not find the named module.

## Overview

Overview Developers may use a versioned #if canImport directive to conditionally compile code based on the version of a dependency module: #if canImport(Dependency, _version: 1.2) // Use declarations introduced in version 1.2 of Dependency #endif A versioned canImport check evaluates to false if the named module cannot be resolved. The compiler emits a warning in case this case: warning: cannot find module 'Dependency' for canImport check; the directive will evaluate to false [#CanImportMissingModule] If the module is expected to be missing in some configurations, you can suppress the warning by checking whether the module can be imported at all before checking its version: #if canImport(Dependency) && canImport(Dependency, _version: 1.2) // ... #endif

## See Also

- [@dynamicCallable implementation requirements (DynamicCallable)](swift-compiler/documentation/diagnostics/dynamic-callable-requirements.md)
- [Add @preconcurrency import (AddPreconcurrencyImport)](swift-compiler/documentation/diagnostics/add-preconcurrency-import.md)
- [Always enabled availability domains (AlwaysAvailableDomain)](swift-compiler/documentation/diagnostics/always-available-domain.md)
- [Argument matching for trailing closures (TrailingClosureMatching)](swift-compiler/documentation/diagnostics/trailing-closure-matching.md)
- [Calling a mutating async actor-isolated method (ActorIsolatedMutatingAsync)](swift-compiler/documentation/diagnostics/actor-isolated-mutating-async.md)
- [Calling an actor-isolated method from a synchronous nonisolated context (ActorIsolatedCall)](swift-compiler/documentation/diagnostics/actor-isolated-call.md)
- [Captures in a `@Sendable` closure (SendableClosureCaptures)](swift-compiler/documentation/diagnostics/sendable-closure-captures.md)
- [Compilation caching (CompilationCaching)](swift-compiler/documentation/diagnostics/compilation-caching.md)
- [Conforming to `StringInterpolationProtocol` (StringInterpolationConformance)](swift-compiler/documentation/diagnostics/string-interpolation-conformance.md)
- [Conversion from `@isolated(any)` function type to synchronous function type (ConversionFromIsolatedAnyToSynchronous)](swift-compiler/documentation/diagnostics/conversion-from-isolated-any-to-synchronous.md)
- [Cross-isolation data race (RegionIsolationCrossIsolationDataRace)](swift-compiler/documentation/diagnostics/region-isolation-cross-isolation-data-race.md)
- [Deprecated declaration warnings (DeprecatedDeclaration)](swift-compiler/documentation/diagnostics/deprecated-declaration.md)
- [Deprecated implementation-only imports (ImplementationOnlyDeprecated)](swift-compiler/documentation/diagnostics/implementation-only-deprecated.md)
- [Dynamic exclusivity (DynamicExclusivity)](swift-compiler/documentation/diagnostics/dynamic-exclusivity.md)
- [Embedded Swift language restrictions (EmbeddedRestrictions)](swift-compiler/documentation/diagnostics/embedded-restrictions.md)