Nios2Linux1.4 Installation Problem

I've downloaded the Nios2Linux1.4 on my machine and double clicked the .exe to install the uclinux. After installation, No Error infomation but I could NOT find Micotronix Linux Project in the NiosII IDE.

I checked through the forum, the method I found is to uninstall and restall.

I follow those steps:

1,unistall the Microtronix Nios II Linux (1.4);

2,unistall the NiosII IDE 5.0;

3,install the NiosII IDE 5.0 with Full components, Reboot.

4,install the Microtronix Nios II Linux (1.4)

At last, I still can't find the Micotronix Linux Project in the NiosII IDE.

The envionment is WindowXP, Quartus II 5.0 with SP1, Nios II 5.0.

Additionally, I Created a project , which built-in the NiosII IDE, then built it, error occurred...

"make -s all

Creating generated_app.mk...

Can't locate sh_launch.pm in @INC (@INC contains: /usr/lib/cygdrive/d/altera/kits/nios2/bin /usr/lib/perl5/5.6.1/cygwin-multi /usr/lib/perl5/5.6.1 /usr/lib/perl5/site_perl/5.6.1/cygwin-multi /usr/lib/perl5/site_perl/5.6.1 /usr/lib/perl5/site_perl .) at - line 2.

BEGIN failed--compilation aborted at - line 2.

make: *** "

NiosII IDE COULD NOT build any project after I installed the Microtronix Nios II Linux (1.4)!???

I am so puzzled:(, Anyone can help me?

Thank you very much!!

Best wishes!