<div dir="ltr"><p style="box-sizing:border-box;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";font-size:14px;margin-top:0px">I'm using swiftenv (<a href="https://github.com/kylef/swiftenv">https://github.com/kylef/swiftenv</a>) to install Swift versions 2 and 3, so I can work with some older projects.</p><p style="box-sizing:border-box;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";font-size:14px;margin-top:0px">Swift 3.1.1 installed perfectly first try. Been through a few iterations, though, trying to install 2.2.1.</p><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";font-size:14px">Installed CMake 3.9.4, Ninja 1.8.2, then Python 3.6.3. Seemed to almost make it through - then failed again, and I'm not sure what's happening with this one.</p><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";font-size:14px">I'd appreciate any help you can offer! Here is the end of my log, starting with the failure:</p><pre style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;font-size:11.899999618530273px;margin-top:0px;word-wrap:normal;padding:16px;overflow:auto;line-height:1.45;background-color:rgb(246,248,250);border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;color:rgb(36,41,46);margin-bottom:0px"><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;padding:0px;margin:0px;background-color:transparent;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit;word-wrap:normal">[136/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenProfiling.cpp.o
FAILED: lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenProfiling.cpp.o
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Ilib/SILGen -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/lib/SILGen -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/include -Iinclude -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/build/Ninja-ReleaseAssert/llvm-macosx-x86_64/include -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/llvm/include -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/build/Ninja-ReleaseAssert/llvm-macosx-x86_64/tools/clang/include -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/llvm/tools/clang/include -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/cmark/src -I/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/build/Ninja-ReleaseAssert/cmark-macosx-x86_64/src -fno-stack-protector -stdlib=libc++ -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wcovered-switch-default -Wnon-virtual-dtor -Werror=date-time -std=c++11 -fcolor-diagnostics -Wdocumentation -Wimplicit-fallthrough -Wunreachable-code -Woverloaded-virtual -O3 -UNDEBUG -fno-exceptions -fno-rtti -target x86_64-apple-macosx10.9 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -arch x86_64 -F /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/../../../Developer/Library/Frameworks -mmacosx-version-min=10.9 -O2 -momit-leaf-frame-pointer -g0 -UNDEBUG -MD -MT lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenProfiling.cpp.o -MF lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenProfiling.cpp.o.d -o lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenProfiling.cpp.o -c /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/lib/SILGen/SILGenProfiling.cpp
In file included from /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/lib/SILGen/SILGenProfiling.cpp:13:
In file included from /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/lib/SILGen/SILGenProfiling.h:16:
In file included from /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/llvm/include/llvm/ADT/DenseMap.h:17:
In file included from /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/llvm/include/llvm/ADT/DenseMapInfo.h:17:
In file included from /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/llvm/include/llvm/ADT/ArrayRef.h:13:
In file included from /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/llvm/include/llvm/ADT/Hashing.h:48:
In file included from /Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/build/Ninja-ReleaseAssert/llvm-macosx-x86_64/include/llvm/Support/DataTypes.h:35:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/cmath:305:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/math.h:309:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/type_traits:1301:38: error: incomplete type 'swift::Expr' used in type trait expression
: public integral_constant<bool, __is_abstract(_Tp)> {};
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/type_traits:1374:39: note: in instantiation of template class 'std::__1::is_abstract<swift::Expr>' requested here
!is_abstract<_T2>::value> {};
^
/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/include/swift/Basic/NullablePtr.h:40:22: note: in instantiation of template class 'std::__1::is_convertible<swift::Expr, swift::Expr>' requested here
std::is_convertible<OtherT, T>::value,
^
/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/include/swift/Basic/NullablePtr.h:30:7: note: while substituting deduced template arguments into function template 'NullablePtr' [with OtherT = swift::Expr]
class NullablePtr {
^
/Users/username/.swiftenv/tmp/swiftenv-build-2.2.1/swift/include/swift/AST/ASTNode.h:24:9: note: forward declaration of 'swift::Expr'
class Expr;
^
1 error generated.
[137/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenExpr.cpp.o
[138/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenLValue.cpp.o
[139/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenPoly.cpp.o
[140/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenProlog.cpp.o
[141/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenStmt.cpp.o
[142/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenType.cpp.o
[143/665] Building CXX object lib/SILGen/CMakeFiles/swiftSILGen.dir/SILGenPattern.cpp.o
ninja: build stopped: subcommand failed.
./utils/build-script: command terminated with a non-zero exit status 1, aborting
</code></pre><div><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;padding:0px;margin:0px;background-color:transparent;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit;word-wrap:normal"><br></code></div><div><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;padding:0px;margin:0px;background-color:transparent;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit;word-wrap:normal">Kyle says he's able to reproduce this, and since swiftenv is a minimal wrapper around the Swift build process, he believes it to be a Swift/High Sierra issue (<a href="https://github.com/kylef/swiftenv/issues/103#issuecomment-345432864">https://github.com/kylef/swiftenv/issues/103#issuecomment-345432864</a>).</code></div><div><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;padding:0px;margin:0px;background-color:transparent;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit;word-wrap:normal"><br></code></div><div><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;padding:0px;margin:0px;background-color:transparent;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit;word-wrap:normal">Any thoughts on what we might do to fix this so I can build Swift 2.2.1 on High Sierra?</code></div><div><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;padding:0px;margin:0px;background-color:transparent;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit;word-wrap:normal"><br></code></div><div><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;padding:0px;margin:0px;background-color:transparent;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit;word-wrap:normal">- leanne</code></div></div>