Fatal error: Can't form Range with upperBound < lowerBound: file <directory>

**Fatal error: Can't form Range with upperBound < lowerBound: file **

I couldn't compile the next very simple code

`// Modifiable Parameters`

```
func theString(_ arrayOfStrings:String ...) {
for s in arrayOfStrings {print (s)}
}

theString("Hello", "Hello, World!", "Nooooo!")

```

**It should have printed **

```
Hello
Hello, World!
Noooo!
```

macOS Catalina, VS Code version 1.46.1

**Compiler throws at me this:**

```
Fatal error: Can't form Range with upperBound < lowerBound: file /Library/Caches/com.apple.xbs/Binaries/SwiftPrebuiltSDKModules_macOS/install/TempContent/Objects/EmbeddedProjects/CrossTrain_macOS_SDK/macOS_SDK/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/swift/Swift.swiftmodule/x86_64.swiftinterface, line 4781
--
Stack dump:
0. Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -interpret /Users//Documents/Swift/aboutkeywordself.swift -enable-objc-interop -stack-check -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -module-name aboutkeywordself
1. Apple Swift version 5.2.2 (swiftlang-1103.0.32.6 clang-1103.0.32.51)
2. While running user code "/Users//Documents/Swift/aboutkeywordself.swift"
0 swift 0x000000010a5fa4ea PrintStackTraceSignalHandler(void*) + 42
1 swift 0x000000010a5f9cc0 SignalHandler(int) + 352
2 libsystem_platform.dylib 0x00007fff685075fd _sigtramp + 29
3 libsystem_notify.dylib 0x00007fff684fd6da notify_register_plain + 711
4 libswiftCore.dylib 0x00007fff6796acf7 $ss17_assertionFailure4file4line5flagss5NeverOs12StaticStringV_A2HSus6UInt32VtFySRys5UInt8VGXEfU_yAMXEfU_ + 87
5 libswiftCore.dylib 0x00007fff6796a9c3 $ss17_assertionFailure4file4line5flagss5NeverOs12StaticStringV_A2HSus6UInt32VtFySRys5UInt8VGXEfU_ + 99
6 libswiftCore.dylib 0x00007fff6796a5d5 $ss17_assertionFailure4file4line5flagss5NeverOs12StaticStringV_A2HSus6UInt32VtF + 533
7 libswiftCore.dylib 0x000000010cd2c3d9 $ss17_assertionFailure4file4line5flagss5NeverOs12StaticStringV_A2HSus6UInt32VtF + 2772181017
8 libswiftCore.dylib 0x000000010cd2c07f $ss17_assertionFailure4file4line5flagss5NeverOs12StaticStringV_A2HSus6UInt32VtF + 2772180159
9 swift 0x000000010637d48a llvm::MCJIT::runFunction(llvm::Function*, llvm::ArrayRef) + 458
10 swift 0x00000001063844fb llvm::ExecutionEngine::runFunctionAsMain(llvm::Function*, std::1::vector, std::1::allocator >, std::1::allocator, std::1::allocator > > > const&, char const* const*) + 2011
11 swift 0x00000001063595ba performCompileStepsPostSILGen(swift::CompilerInstance&, swift::CompilerInvocation&, std::1::unique_ptr >, bool, llvm::PointerUnion, swift::PrimarySpecificPaths const&, bool, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 14362
12 swift 0x000000010634df75 swift::performFrontend(llvm::ArrayRef, char const*, void*, swift::FrontendObserver*) + 55813
13 swift 0x00000001062c3f53 main + 1283
14 libdyld.dylib 0x00007fff6830ecc9 start + 1
15 libdyld.dylib 0x000000000000000a start + 2546930498
 
[Done] exited with code=null in 0.704 seconds
```