Custom 1.5.1 Modpack Crash Troubles...

[Noiro]

Alright guys, firstly, I am using the newest version of MCPC for 1.5.1 (151 compat version). I have updated a small list of mods I will be using to their 1.5.1 versions and I'll add more once I get this small list working. For now, I have a Forge crash or at least that is what Google says it is. Can someone help me resolve what I need to do to get this running?I'm not even sure IDs play a role into this yet due to how early the crash occurs.

I built the pack from FTB Ultimate 1.4.7 and updated individual mods and coremods, then updated MCPC to be compatible (or at least they say it is compatible). I removed all mods not ready for 1.5 or ones I didn't find necessary or found them to be cheaty.

http://pastebin.com/cNdNxpmL

EDIT: I was trying various things and discovered I only get this crash if NEI is in the coremods folder. I am using the version on the 1.5.1 update thread they recommend so I'm not sure what is going on.

 

[Peppe]

To read a crash report look for the first line where a problem is reported.

For example in your crash:
Line 18 indicates an error in powercrystals:
2013-05-08 10:02:26 [SEVERE] [ForgeModLoader] A critical problem occured registering the ASM transformer class powercrystals.core.at.PCCAccessTransformer
Then line 19 goes into the details:
ava.lang.ClassNotFoundException: powercrystals.core.at.PCCAccessTransformer
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:273)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
....
Check your powercrystals core version. I believe they have released the core for 1.5.2, so make sure you get the core for 1.5.1.
Also make sure you are using the final version of forge for 1.5.1 unless you know you can use an older version. Believe it was 682. Do not use forge for 1.5.2.

 

[Noiro]

To read a crash report look for the first line where a problem is reported.

For example in your crash:
Line 18 indicates an error in powercrystals:
2013-05-08 10:02:26 [SEVERE] [ForgeModLoader] A critical problem occured registering the ASM transformer class powercrystals.core.at.PCCAccessTransformer
Then line 19 goes into the details:
ava.lang.ClassNotFoundException: powercrystals.core.at.PCCAccessTransformer
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:273)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
....
Check your powercrystals core version. I believe they have released the core for 1.5.2, so make sure you get the core for 1.5.1.
Also make sure you are using the final version of forge for 1.5.1 unless you know you can use an older version. Believe it was 682. Do not use forge for 1.5.2.

I'm using an MCPC build for 1.5.1 which has the correct version of Forge. I only get that error when I am trying to install the NEI as a mod but I am not even installing Power Cystals (I removed the mod to see what would happen).
A critical problem occured registering the ASM transformer class cpw.mods.fml.common.asm.transformers.DeobfuscationTransformer
Is the modified error code with NEI. NEI version is 1.4.7.4 (the version for the 1.5 update in stickied thread). The MCPC build I am running is: mcpc-plus-1.5.1-R0.3-SNAPSHOT-f682-396

The only two mods not complying are NEI and Twilight Forest, and after that, everything else seems to run like a charm. I'm so close..

 

[Peppe]

I'm using an MCPC build for 1.5.1 which has the correct version of Forge. I only get that error when I am trying to install the NEI as a mod but I am not even installing Power Cystals (I removed the mod to see what would happen).
A critical problem occured registering the ASM transformer class cpw.mods.fml.common.asm.transformers.DeobfuscationTransformer
Is the modified error code with NEI. NEI version is 1.4.7.4 (the version for the 1.5 update in stickied thread). The MCPC build I am running is: mcpc-plus-1.5.1-R0.3-SNAPSHOT-f682-396

The only two mods not complying are NEI and Twilight Forest, and after that, everything else seems to run like a charm. I'm so close..

NEI 1.4.7.4 is the last version for MC 1.4.7.

You need a 1.5.1 version. Chicken bones old version can be found here:
http://www.chickenbones.craftsaddle.org/Files/Old_Versions/
You probably want NEI 1.5.2.10

 

[Noiro]

NEI 1.4.7.4 is the last version for MC 1.4.7.

You need a 1.5.1 version. Chicken bones old version can be found here:
http://www.chickenbones.craftsaddle.org/Files/Old_Versions/
You probably want NEI 1.5.2.10

Oh wow, that worked like a charm. Not sure why the 1.5 update thread uses a 1.4.7 version for 1.5. All I've got left is Twilight Forest 1.17.0 throwing a: java.lang.NoClassDefFoundError: net/minecraft/entity/NpcMerchant
on bootup.

 

[KirinDave]

Oh wow, that worked like a charm. Not sure why the 1.5 update thread uses a 1.4.7 version for 1.5. All I've got left is Twilight Forest 1.17.0 throwing a: java.lang.NoClassDefFoundError: net/minecraft/entity/NpcMerchant
on bootup.

You have an outdated forge build.

 

[Noiro]

You have an outdated forge build.

I'm MCPC+ Build 396. The channel tells me it is up to date with Forge, but did not give version.

 

[Peppe]

Try Twilight Forest 1.17.2?

 

[KirinDave]

I'm MCPC+ Build 396. The channel tells me it is up to date with Forge, but did not give version.

Basically that comes up because your mod and forge disagree about something. Someone is not on board. I had that problem in 2 places:

1. Runic Dust was not up to date with 1.5.1 and so failed.
2. Mekanism was not up to date with MFR and so failed.