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I'm struggling to reinstall Unity after Hub crashed halfway through installing an editor version.

I have tried to delete the partially installed Unity - but I don't know all the locations to look, as any new attempts to load Unity are blocked by older files.

Error dialog: Unity 2021.1.16f1 Android Support Setup: Failed to delete old Unity Android Support installation files. Maybe Unity or some of its tools are still running?

There is no Unity running. I checked in Task Manager. I had made sure the directory was empty before I reinstalled. I also restarted the Hub before I started the new installation (just in case) then removed Hub, and after that all Unity versions....

Running Windows 10.

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2 Answers 2

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Press the Locate button on the Installs tab of the hub. enter image description here

That will bring up a folder showing the install path of the editors. enter image description here

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    \$\begingroup\$ Hub showed nothing, but saw partial folder in the HubEditor, also a problem with connecting android. Reinstalled Unity + android tools but I Hub faild to find sdk's which I thought Hub would do Console 1) CommandWithNoStdoutInvokationFailure: Gradle initialization failed. 2) The option setting android.enableR8=false' is deprecated. 3) WARNING: The option setting 'android.enableR8=false' is deprecated. 4) PlaybackEngines\AndroidPlayer\SDK\build-tools\30.0.2\package.xml. Probably the SDK is read-only 5) > C:\Users\bb\.gradle\caches\6.1.1\file-changes\last-build.bin (Access is denied) \$\endgroup\$
    – StackBuddy
    Feb 13, 2022 at 9:14
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The problem was caused by folder permissions, which needed to be changed on the .bin file. The old file couldn't be overwritten. Here is the console output I was getting during an installation attempt:

CommandWithNoStdoutInvokationFailure: Gradle initialization failed.
The option setting android.enableR8=false' is deprecated. 
WARNING: The option setting 'android.enableR8=false' is deprecated.
PlaybackEngines\AndroidPlayer\SDK\build-tools\30.0.2\package.xml. Probably the SDK is read-only
C:\Users\bb\.gradle\caches\6.1.1\file-changes\last-build.bin (Access is denied)

Unchecking the read-only permissions checkbox on last-build.bin fixed all the other problems, and my game is running now on Android.

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