ESP+Eclipse SDK compilation error: '.subdirs' problem, xtensa problem

I downloaded the SDK firmware development kit of ESP8266 on the Internet, and downloaded Eclipse+IDE as the development platform and the cygwin environment. I directly downloaded someone else's compressed package, so it has its own cygwin, eclipse, and project in it. Therefore, other configurations were not done, resulting in a failure to compile when building. It is rarely said on the Internet (except for foreign ones). The specific questions are:

one,

xtensa-lx106-elf not found

Don't write down the specifics, just write down the keywords

-xf -xcc

Or something like this.

There is a sentence in the console: Is xtensa-lx106-elf in the path? Next comes a bunch of errors. So in short , the path problem of environment variables

In this case, I put (note the semicolon separation);

               ...\cygwin\opt\xtensa-lx106-elf\bin to path.

two,

Makefile:330: recipe for target '.subdirs' failed

Such a problem is the problem of the makefile. If there is a problem with the specific file, add the suffix .bak to the makefile under which file or delete it (keep it in case, just add the suffix).

three,

By the way: if when importing the project, there is no cyg. . If the platform option is selected, add the .../cygwin/bin path to the environment variable path.