1. Limited Libraries and Frameworks: Swift is still a relatively new language and as such, there are not as many libraries and frameworks available for it as there are for other languages such as Java and Objective-C. This can make it difficult for developers to find the right tools for their project.
2. Limited Knowledge Base: As with any new language, there is a limited knowledge base for Swift. This can make it difficult for developers to find the answers to their questions and can lead to a slower development process.
3. Performance Issues: Swift is not as fast as other languages such as C++. This can lead to slower app performance and can be a major issue for certain types of apps.
4. Lack of Support from Apple: Apple does not provide the same level of support for Swift as they do for other languages such as Objective-C and Java. This can make it difficult for developers to find the help they need when developing their apps.