3. Signing / App Installation Related
3.1. A wall of error including "Signature Invalid"
Please perform a test in LiveContainer settings -> Test JIT-Less Mode before submitting any issues about this.
Probably caused by certificate used to sign the app being revoked before expires. Solution: Long press app -> Settings -> scroll down -> force re-sign
It is reported that some version of CydiaSubstrate cannot be signed by AltSign. So if the error message contains "CydiaSubstrate", please try switching to ZSign. See item 3.2 below.
3.2. /Users/runner/Library/Developer/Xcode/DerivedData/AltStore-dunvejkuqerofjghtqolpzgexuyv/SourcePackages/checkouts/AltSign/Sources/ldid/../ldid-core/ldid.cpp(1368): _assert(): end >= size - 0x10 (or something like that)
This is seen most on Flutter(Dart) apps and is caused by AltSign's strict check on app binaries. Solution: Switch signer to ZSign.
- LiveContainer settings -> Default Signer -> Select ZSign
- Long press app -> Settings -> Signer -> Select ZSign
3.3. The bundle “OpenSSL” couldn’t be loaded
First, please check whether SideStore/AltStore is expired or not. If SideStore/AltStore is not expired, please switch to ZSign. See steps in item 3.2.
This issue is likely to be caused by SideStore's backup is signed by another certificate or expired.
3.4. LiveContainer crash when installing app
The app you are installing might not be compatible with AltSign, please switch to ZSign and try again. See steps in item 3.2.