问题
Context :
macOs Catalina 10.15.6
Java 1.8.0_161
After having updated Android Studio 4.2 Canary 7 to Canary 8 (and to Canary 9), it cannot be opened any more.
I've tried installing it from both Android Studio official website and from JetBrains' Toolbox app. In any case the same behavior occurs :
When trying to launch Android Studio nothing happens. It doesn't even show the "SplashScreen" thing.
When using command line to launch the app I have an error that may be useful :
> open [...]/Android\ Studio\ 4.2\ Preview.app
LSOpenURLsWithRole() failed with error -10810 for the file [...]/Android Studio 4.2 Preview.app.
I've seen on the internet that it may mean that the app haven't the appropriate permissions to be launched. With previous versions of Android Studio canary, i've never changed any permissions so why now ?
回答1:
When launching directly [...]/Android Studio 4.2 Preview.app/Contents/MacOs/studio I have the following output :
2020-09-03 14:09:02.078 studio[4589:59392] allVms required 1.8*,1.8+
2020-09-03 14:09:02.078 studio[4589:59392] Can't find bundled java.The folder doesn't exist: /Applications/Android Studio 4.2 Preview.app/Contents/jbr
2020-09-03 14:09:02.078 studio[4589:59392] Can't find bundled java.The folder doesn't exist: /Applications/Android Studio 4.2 Preview.app/Contents/jdk
2020-09-03 14:09:02.082 studio[4589:59397] WorkingDirectory is absent in Info.plist. Current Directory: /Applications
2020-09-03 14:09:02.082 studio[4589:59397] fullFileName is: /Applications/Android Studio 4.2 Preview.app/Contents/bin/studio.vmoptions
2020-09-03 14:09:02.082 studio[4589:59397] fullFileName exists: /Applications/Android Studio 4.2 Preview.app/Contents/bin/studio.vmoptions
2020-09-03 14:09:02.083 studio[4589:59397] Value of STUDIO_VM_OPTIONS is (null)
2020-09-03 14:09:02.083 studio[4589:59397] Processing VMOptions file at /Applications/Android Studio 4.2 Preview.app/Contents/bin/studio.vmoptions
2020-09-03 14:09:02.083 studio[4589:59397] Done
2020-09-03 14:09:02.083 studio[4589:59397] Processing VMOptions file at /Users/myUser/Library/Application Support/Google/AndroidStudioPreview4.2/studio.vmoptions
2020-09-03 14:09:02.083 studio[4589:59397] Done
2020-09-03 14:09:02.083 studio[4589:59397] Processing VMOptions file at
2020-09-03 14:09:02.084 studio[4589:59397] No content found
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Error occurred during initialization of VM
Multiple garbage collectors selected
The line i want to highlight here is
2020-09-03 14:09:02.083 studio[4589:59397] Processing VMOptions file at /Users/myUser/Library/Application Support/Google/AndroidStudioPreview4.2/studio.vmoptions
After having removed that file, the new version of canary can be opened !
I guess there is something wrong in this file that prevents the migration
回答2:
In my case, I've isolated a couple of studio.vmoptions values that, if left in, prevent any version >= Android Studio 4.2 canary 8 to launch.
-XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=85
-XX:+UseCMSInitiatingOccupancyOnly
-Xloggc:gc.log
If I remove all of them, it opens as normal. If I leave any of them, it won't open.
来源：https://stackoverflow.com/questions/63723196/cannot-open-android-studio-4-2-canary-8-or-9-after-having-installed-canary-7