Missing Prompt When Books is Launched

[ChristopherHale]

I'm not receiving the prompt when Books launches and no menu item was created.

[AngeloD2022]

Hi, this is a known issue, and I plan to fix it when I'm not busy.

[ChristopherHale]

Thanks!

[ChristopherHale]

Hello, just tried it again. I'm on Books 7.5 now and it's not displaying a prompt still.

[starlinking-spec]

Same for me with Books 8.5

I followed these steps:

• Disable SIP
• Disable library validation
• Enable the arm64e ABI boot flag
• Run build.sh
• Run inject.sh

Apple Books opens but I'm seeing the following in the logs (many more lines like these) and there's no alert requesting access to the book container.

2026-06-03 18:00:09.147 Books[3175:66010] Unbalanced calls to begin/end appearance transitions for <BKUpgradeViewController: 0x7a0298000>.
2026-06-03 18:00:09.605 Books[3175:66024] *** Assertion failure #1: void TSSPropertyEntryInitWithInt(TSSPropertyEntry *, TSSProperty, int) TSSPropertyEntry_Internal.h:55 Illegal to set undefined value for property 94 hyphenationMinimumWordLength
2026-06-03 18:00:09.605 Books[3175:66024] *** Assertion failure #2: void TSSPropertyEntryInitWithInt(TSSPropertyEntry *, TSSProperty, int) TSSPropertyEntry_Internal.h:55 Illegal to set undefined value for property 95 hyphenationMinimumCharactersBefore
2026-06-03 18:00:09.605 Books[3175:66024] *** Assertion failure #3: void TSSPropertyEntryInitWithInt(TSSPropertyEntry *, TSSProperty, int) TSSPropertyEntry_Internal.h:55 Illegal to set undefined value for property 96 hyphenationMinimumCharactersAfter
2026-06-03 18:00:09.605 Books[3175:66024] *** Assertion failure #4: void TSSPropertyEntryInitWithFloat(TSSPropertyEntry *, TSSProperty, float) TSSPropertyEntry_Internal.h:66 Illegal to set undefined value for property 97 hyphenationZone
2026-06-03 18:00:09.606 Books[3175:66024] *** Assertion failure #5: int TSSPropertyEntryGetIntValue(const TSSPropertyEntry *) TSSPropertyEntry_Internal.m:75 Undefined value in entry for property 94 hyphenationMinimumWordLength
2026-06-03 18:00:09.606 Books[3175:66024] *** Assertion failure #6: int TSSPropertyEntryGetIntValue(const TSSPropertyEntry *) TSSPropertyEntry_Internal.m:75 Undefined value in entry for property 95 hyphenationMinimumCharactersBefore
2026-06-03 18:00:09.606 Books[3175:66024] *** Assertion failure #7: int TSSPropertyEntryGetIntValue(const TSSPropertyEntry *) TSSPropertyEntry_Internal.m:75 Undefined value in entry for property 96 hyphenationMinimumCharactersAfter
2026-06-03 18:00:09.606 Books[3175:66024] *** Assertion failure #8: float TSSPropertyEntryGetFloatValue(const TSSPropertyEntry *) TSSPropertyEntry_Internal.m:100 Undefined value in entry for property 97 hyphenationZone
2026-06-03 18:00:09.608 Books[3175:66024] *** Assertion failure #9: int TSSPropertyEntryGetIntValue(const TSSPropertyEntry *) TSSPropertyEntry_Internal.m:75 Undefined value in entry for property 94 hyphenationMinimumWordLength
2026-06-03 18:00:09.608 Books[3175:66024] *** Assertion failure #10: int TSSPropertyEntryGetIntValue(const TSSPropertyEntry *) TSSPropertyEntry_Internal.m:75 Undefined value in entry for property 95 hyphenationMinimumCharactersBefore
2026-06-03 18:00:09.608 Books[3175:66024] *** Assertion failure #11: int TSSPropertyEntryGetIntValue(const TSSPropertyEntry *) TSSPropertyEntry_Internal.m:75 Undefined value in entry for property 96 hyphenationMinimumCharactersAfter

[AngeloD2022]

It doesn't look like the dylib is being injected. I'd verify that SIP and library validation are actually disabled.

I've put the commands below to run followed by the output you should expect.

csrutil status
# should print: System Integrity Protection status: disabled

defaults read /Library/Preferences/com.apple.security.libraryvalidation.plist DisableLibraryValidation
# should print: 1