SOPC Builder - Error: Top-level design entity is undefined

[Altera_Forum]

I have Quartus II 10.1sp1 installed on an Ubuntu Server. I can get the tools to run, but when attempting to compile a project originally created on a Windows machine, SOPC Builder throws the following errors for each of the VIP components: 

 Error: Top-level design entity "cpr" is undefined Error: Unable to generate simulation model for cpr   I'm wondering if I'm missing an environment variable or something. Here's what I have in my bashrc:  QUARTUS="/opt/altera/10.1/quartus/bin" QUARTUS_ROOTDIR="/opt/altera/10.1/quartus" SOPC_BUILDER="/opt/altera/10.1/quartus/sopc_builder/bin" SOPC_KIT_NIOS2="/opt/altera/10.1/nios2eds" SOPC_BUILDER_PATH_100="/opt/altera/10.1/nios2eds QUARTUS_64BIT=1   Any ideas what could be missing?  How does everyone typically set their environment variables?  Any other ideas on what the problem might be?

[Altera_Forum]

you can get case sensitivity issues going from Windows to Linux. take a look at the case of the files in the project, custom components, etc

[Altera_Forum]

Thanks for the heads up. I'll have to check on that. 

 I discovered that SOPC Builder will generate the system without error if I do NOT have the "create project simulator files" checkbox checked. Strange. That sounds like the issue in Windows where you have to run as Administrator.

[Altera_Forum]

interesting

[Altera_Forum]

Confirmed that this is a bug in 10.1 that has been fixed in 11.0 and beyond.

[Altera_Forum]

thanks for following up