Xojo 2021 installed.
App built.
The plugin name errors are gone.
Now I get:
ITMS-90338: Non-public API usage - The app references non-public selectors in Frameworks/MBS_MacBase_NSColor_Plugin_20485.framework/MBS_MacBase_NSColor_Plugin_20485: blackComponent, blendedColorWithFraction:ofColor:, colorSpaceName, colorWithCalibratedHue:saturation:brightness:alpha:, colorWithCalibratedRed:green:blue:alpha:, colorWithCalibratedWhite:alpha:, colorWithCatalogName:colorName:, colorWithDeviceCyan:magenta:yellow:black:alpha:, colorWithDeviceHue:saturation:brightness:alpha:, colorWithDeviceRed:green:blue:alpha:, colorWithDeviceWhite:alpha:, colorWithSRGBRed:green:blue:alpha:, controlColor, cyanComponent, getCyan:magenta:yellow:black:alpha:, headerTextColor, highlightColor, keyboardFocusIndicatorColor, knobColor, magentaComponent, systemBrownColor, windowBackgroundColor, yellowComponent,
The app references non-public selectors in Frameworks/MBS_Main_NSBase_Plugin_20485.framework/MBS_Main_NSBase_Plugin_20485: autoreleasePoolExists,
The app references non-public selectors in Frameworks/MBS_MacBase_NSAttributedString_Plugin_20485.framework/MBS_MacBase_NSAttributedString_Plugin_20485: RTFDFileWrapperFromRange:documentAttributes:, RTFDFromRange:documentAttributes:, RTFFromRange:documentAttributes:, containsAttachments, docFormatFromRange:documentAttributes:, fixAttachmentAttributeInRange:, fixFontAttributeInRange:, fixParagraphStyleAttributeInRange:, fontAttributesInRange:, initWithDocFormat:documentAttributes:, initWithHTML:baseURL:documentAttributes:, initWithHTML:documentAttributes:, initWithPath:documentAttributes:, initWithRTF:documentAttributes:, initWithRTFD:documentAttributes:, initWithURL:documentAttributes:, rulerAttributesInRange:, setAlignment:range:, setBaseWritingDirection:range:, subscriptRange:, superscriptRange:, unscriptRange:.
If method names in your source code match the private Apple APIs listed above, altering your method names will help prevent this app from being flagged in future submissions. In addition, note that one or more of the above APIs may be located in a static library that was included with your app. If so, they must be removed.
I have absolutely current Xojo and MBS plugins.
What happens next?