Cannot update Flash Player on OS X El Capitan

This is similar to my last issue:

Cannot update Flash player on Mavericks or Yosemite?

I cannot update Flash Player from version 21.0.0.242 to 22.0.0.192. Eventually, I got Flash Player to update but I don't remember how I did it.

Once again I'm getting the cryptic:

It fails at 59% if that means anything.

Here is my log from ~/Library/Logs/FlashPlayerInstallManager.log:

2016-06-29 12:31:06 -0500   IM: ---------- log start ----------

2016-06-29 12:31:06 -0500   IM: All install checks pass

2016-06-29 12:31:07 -0500   IM: You may need to restart your browser to use this version of Flash Player.

2016-06-29 12:31:07 -0500   IM: [install started]

2016-06-29 12:31:08 -0500   RA: Unable to launch FPInstallHelper. Error = 'launch path not accessible'

2016-06-29 12:31:08 -0500   RA:

Attributes for '/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/FPInstallHelper':

{

    NSFileCreationDate = "2016-06-13 22:21:01 +0000";

    NSFileExtensionHidden = 0;

    NSFileGroupOwnerAccountID = 0;

    NSFileGroupOwnerAccountName = wheel;

    NSFileHFSCreatorCode = 0;

    NSFileHFSTypeCode = 0;

    NSFileModificationDate = "2016-06-13 22:21:01 +0000";

    NSFileOwnerAccountID = 0;

    NSFileOwnerAccountName = root;

    NSFilePosixPermissions = 2541;

    NSFileReferenceCount = 1;

    NSFileSize = 22784;

    NSFileSystemFileNumber = 72110938;

    NSFileSystemNumber = 16777220;

    NSFileType = NSFileTypeRegular;

}

2016-06-29 12:31:08 -0500   RA:

Attributes for '/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T':

{

    NSFileCreationDate = "2014-10-20 04:03:46 +0000";

    NSFileExtensionHidden = 0;

    NSFileGroupOwnerAccountID = 0;

    NSFileGroupOwnerAccountName = wheel;

    NSFileModificationDate = "2016-06-29 17:31:07 +0000";

    NSFileOwnerAccountID = 0;

    NSFileOwnerAccountName = root;

    NSFilePosixPermissions = 449;

    NSFileReferenceCount = 9;

    NSFileSize = 306;

    NSFileSystemFileNumber = 19557275;

    NSFileSystemNumber = 16777220;

    NSFileType = NSFileTypeDirectory;

}

2016-06-29 12:31:08 -0500   IM: [install failed: 30]

2016-06-29 12:31:08 -0500   IM: Install failed with error code: 30.

2016-06-29 12:31:08 -0500   IM: ----------  log end  ----------

The log is the exact same after every failed installation.