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Two different versions of the CCS software installed at the same time, there is a problem.

Dear Master:

I have installed  2 versions of the CCS software in my computer, first installed CCS4.2, and then CCS5.4.

The default C6000 compiler for CCS4.2 is v7.0.3.

The default C6000 compiler for CCS5.4 is v7.4.2.

CCS4.2 works correct.

However,when I setup a new CCS project in CCS5.4,it reminds me that "No build-tools are current installed for this device-family".

In the Code Composer Studio Installation Details , I see that  there is already a C6000 Compiler Tools 7.4.2 exists.

Why can't I set up the CCS project?

Is there a conflict between the two versions of the compiler?