Since updating to 4.8 I’ve been unable to package my blueprint only project due to this error. Migrating the content to another project didn’t fix it. [Here][1] is the cook.txt output on the failed package. Would really appreciate some help on this.
49491-cook.txt (3.66 MB)
Hey The Scanner Darkly,
The following are the first 50 errors from your project, it basically boils down to your file names being way too long for the editor:
[2015.07.08-12.19.55:934][ 0]LogInit:Display: Warning/Error Summary
[2015.07.08-12.19.55:935][ 0]LogInit:Display: ---------------------
[2015.07.08-12.19.55:953][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Handling/HANDLING_B_FS92_9mm_Cocking_Motion_Re_Chamber_New_Round_Safety_On_Loaded_Magazine_mono.uasset
[2015.07.08-12.19.55:954][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Handling/HANDLING_B_FS92_9mm_Cocking_Motion_Re_Chamber_New_Round_Safety_On_Loaded_Magazine_mono.uasset
[2015.07.08-12.19.55:954][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Single_RR3_mono_96k_24bit.uasset
[2015.07.08-12.19.55:954][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Single_RR3_mono_96k_24bit.uasset
[2015.07.08-12.19.55:955][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Single_RR2_mono_96k_24bit.uasset
[2015.07.08-12.19.55:955][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Single_RR2_mono_96k_24bit.uasset
[2015.07.08-12.19.55:956][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Single_RR1_mono_96k_24bit.uasset
[2015.07.08-12.19.55:956][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Single_RR1_mono_96k_24bit.uasset
[2015.07.08-12.19.55:957][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_9x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:958][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_9x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:959][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_6x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:959][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_6x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:960][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_3x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:960][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_3x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:961][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_2x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:961][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_2x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:961][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_12x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:962][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Burst_800RPM_12x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:962][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Automatic_800RPM_loop_mono_96k_24bit.uasset
[2015.07.08-12.19.55:962][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_07_Fire_Automatic_800RPM_loop_mono_96k_24bit.uasset
[2015.07.08-12.19.55:963][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Single_RR3_mono_96k_24bit.uasset
[2015.07.08-12.19.55:964][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Single_RR3_mono_96k_24bit.uasset
[2015.07.08-12.19.55:964][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Single_RR2_mono_96k_24bit.uasset
[2015.07.08-12.19.55:964][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Single_RR2_mono_96k_24bit.uasset
[2015.07.08-12.19.55:965][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Single_RR1_mono_96k_24bit.uasset
[2015.07.08-12.19.55:965][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Single_RR1_mono_96k_24bit.uasset
[2015.07.08-12.19.55:965][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_9x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:966][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_9x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:966][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_6x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:967][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_6x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:967][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_3x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:967][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_3x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:968][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_2x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:968][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_2x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:969][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_12x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:970][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Burst_1000RPM_12x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:970][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Automatic_1000RPM_loop_mono_96k_24bit.uasset
[2015.07.08-12.19.55:971][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_06_Fire_Automatic_1000RPM_loop_mono_96k_24bit.uasset
[2015.07.08-12.19.55:971][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Single_RR3_mono_96k_24bit.uasset
[2015.07.08-12.19.55:971][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Single_RR3_mono_96k_24bit.uasset
[2015.07.08-12.19.55:971][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Single_RR2_mono_96k_24bit.uasset
[2015.07.08-12.19.55:972][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Single_RR2_mono_96k_24bit.uasset
[2015.07.08-12.19.55:972][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Single_RR1_mono_96k_24bit.uasset
[2015.07.08-12.19.55:973][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Single_RR1_mono_96k_24bit.uasset
[2015.07.08-12.19.55:973][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Burst_600RPM_9x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:974][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Burst_600RPM_9x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:974][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Burst_600RPM_6x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:974][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Burst_600RPM_6x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:975][ 0]LogInit:Display: CookResults:Error: Error Couldn't save package, filename is too long: F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Burst_600RPM_3x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:976][ 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :F:/Documents/Unreal Projects/BLISTER/BLISTER/Content/UniversalSoundFX/Sound_Effects/WEAPONS/Firearms/Fire_Real_Time_Strategy_RTS/FIREARM_RTS_Machine_Gun_Model_05_Fire_Burst_600RPM_3x_mono_96k_24bit.uasset
[2015.07.08-12.19.55:976][ 0]LogInit:Display: NOTE: Only first 50 errors displayed.
Please update the names of your files and try to package your project again. If you receive another error/failure, please upload those and I’ll look into that further for you.
Have a great day! 
That did the job! Thanks for the help.