<div dir="ltr"><div>I don't have Catalina, but just to stimulate ideas, from a quick skim around the net...</div><div><br></div><div dir="ltr"><a href="https://github.com/flutter/flutter/issues/43713">https://github.com/flutter/flutter/issues/43713</a> </div><div dir="ltr"></div><div dir="ltr">> Solved my problem... Mac OS Catalina change default bash and conda environment was starting automatically...<br>> I had just comment on .bash_profile lines about initialization."<br></div><div dir="ltr"><br></div><div dir="ltr"><a href="https://github.com/flutter/flutter/issues/42437">https://github.com/flutter/flutter/issues/42437</a> </div><div dir="ltr"><div dir="ltr">> I have solved my above issues by run "conda deactivate" to exist the Anaconda enviroment. I don't know why, but after I exited the Python anaconda enviroment, then I can run "flutter run" on IOS simulator without any problem. <br></div><div dir="ltr"></div></div><div dir="ltr"><span class="gmail-comment-copy" style="font-size:13px;margin:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:inherit;font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;vertical-align:baseline;box-sizing:inherit;color:rgb(36,39,41)"><br></span></div><div dir="ltr"><a href="https://stackoverflow.com/questions/54955154/get-error-attributes-may-not-be-specified-on-a-category-eagldrawable-h-xcode-1">https://stackoverflow.com/questions/54955154/get-error-attributes-may-not-be-specified-on-a-category-eagldrawable-h-xcode-1</a> <br></div><div><span class="gmail-comment-copy" style="margin:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:inherit;vertical-align:baseline;box-sizing:inherit">> </span><span class="gmail-comment-copy" style="font-size:13px;margin:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;line-height:inherit;font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;vertical-align:baseline;box-sizing:inherit;color:rgb(36,39,41)">uninstall and re install xcode and it work like charm"</span><span style="font-size:13px;color:rgb(36,39,41);font-family:Arial,"Helvetica Neue",Helvetica,sans-serif"> </span></div><div dir="ltr"></div><div><br></div><div><br></div><div><a href="https://gitlab.phidani.be/Chirag.Patel/clang/commit/aa59bd4807e5129200864caedac0a6d22a8c8185">https://gitlab.phidani.be/Chirag.Patel/clang/commit/aa59bd4807e5129200864caedac0a6d22a8c8185</a>  <br></div><div>Looks like the error message was deleted a couple of years ago, so maybe a later compiler will help.</div><div><br></div>cheers -ben<div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 14 Jan 2020 at 18:58, Fabio Niephaus <<a href="mailto:notifications@github.com">notifications@github.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <h4>Steps to reproduce:</h4>
<div><pre><span>cd</span> build.macos64x64/squeak.cog.spur
make debug</pre></div>
<h4>Errors</h4>
<pre><code>/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSArray.h:109:12: error: attributes may not be specified on a category
@interface NSArray<ObjectType> (NSArrayDiffing)
           ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSArray.h:196:12: error: attributes may not be specified on a category
@interface NSMutableArray<ObjectType> (NSMutableArrayDiffing)
           ^
In file included from <built-in>:1:
In file included from ./../../platforms/iOS/vm/SqueakPureObjc_Prefix.pch:12:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Cocoa.framework/Headers/Cocoa.h:12:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:48:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSKeyValueCoding.h:8:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSOrderedSet.h:112:12: error: attributes may not be specified on a category
@interface NSOrderedSet<ObjectType> (NSOrderedSetDiffing)
           ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSOrderedSet.h:187:12: error: attributes may not be specified on a category
@interface NSMutableOrderedSet<ObjectType> (NSMutableOrderedSetDiffing)
</code></pre>

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