After upgrading to 2018 SAB this ISM no longer builds. These are custom assembly actions built AnyCPU. The DLL and clr file are present at the path indicated. No intentional changes were made other than converting the ISM to IS 2018.
How can we diagnose this problem?
ISDEV : error -7141: An unexpected error occurred embedding file C:\Builds\1016\O\E\src\Source\Utilities\tools\bin\release\ISTools.dll into C:\Builds\1016\O\E\src\Source\InstallShield\E\Std\Interm\_AC87EF3426D8E5FBFC30F254503BB5D5.clr [C:\Builds\1016\O\E\BuildType\TFSBuild.proj]
[Edit: after removing dead code from the assembly the error moved to a dependency of the assembly. The error is the same but it complains that the dependency can't be added.]
How can we diagnose this problem?
ISDEV : error -7141: An unexpected error occurred embedding file C:\Builds\1016\O\E\src\Source\Utilities\tools\bin\release\ISTools.dll into C:\Builds\1016\O\E\src\Source\InstallShield\E\Std\Interm\_AC87EF3426D8E5FBFC30F254503BB5D5.clr [C:\Builds\1016\O\E\BuildType\TFSBuild.proj]
[Edit: after removing dead code from the assembly the error moved to a dependency of the assembly. The error is the same but it complains that the dependency can't be added.]