while compiling a compact framework project in VS2005 Beta 2(June CTP) I
received the following error:

Error 1893 Metadata file 'c:\Development\OpenNetCF
Vault\ApplicationBlocks\OpenNETCF\bin\Release\OpenNETCF.dll' could not be
opened -- 'Version 2.0 is not a compatible version.' C:\Development\OpenNetCF
Vault\ApplicationBlocks\Common\src\cs\Common\CSC


what does this error mean??

the setup:
I compiled OpenNetCF (SDF project) succesfully, then when compiling the
OpenNetCF.ApplicationBlocks.Common project I recieved this error.
the OpenNetCF.ApplicationBlocks.Common project references the OpenNetCF
project.

...
any Ideas on things to try?

--
Thanks in advance