How to resolve such issue 'no such environment: Default 'when' NPM install'

I met such issue 'no such environment: default' when NPM install some libs, such as iconv, hashlib...

The workround is to modify/usr/local/lib/node/wafadmin/build. py like below:

Def get_env (Self ):
Return self. env_of_name (default)

The original is like

Def get_env (Self ):
Return self. env_of_name ('default ')

The issue is like below:

> Node-expat@1.4.0 install/usr/local/lib/node_modules/xml2js-expat/node_modules/node-expat
> Node-WAF configure build

Checking for program g ++ or C ++:/usr/bin/g ++
Checking for program CPP:/usr/bin/CPP
Checking for program AR:/usr/bin/Ar
Checking for program ranlib:/usr/bin/ranlib
Checking for G ++: OK
Checking for Node path: not found
Checking for node Prefix: OK/usr/local
Checking for header expat. h: no such environment: Default
Traceback (most recent call last ):
File "/usr/local/bin/node-WAF", line 16, in <module>
Scripting. Prepare (T, OS. getcwd (), version, wafdir)
File "/usr/local/bin/../lib/node/wafadmin/scripting. py", line 145, in prepare
Prepare_impl (T, CWD, Ver, wafdir)
File "/usr/local/bin/../lib/node/wafadmin/scripting. py", line 135, in prepare_impl
Main ()
File "/usr/local/bin/../lib/node/wafadmin/scripting. py", line 188, in Main
Fun (CTX)
File "/usr/local/bin/../lib/node/wafadmin/scripting. py", line 241, in configure
Conf. sub_config ([''])
File "/usr/local/bin/../lib/node/wafadmin/configure. py", line 221, in sub_config
Self. recurse (K, name = 'configure ')
File "/usr/local/bin/../lib/node/wafadmin/utils. py", line 634, in recurse
F (Self)
File "/usr/local/lib/node_modules/xml2js-expat/node_modules/node-expat/wscript", line 13, in configure
Errmsg = "not installed ")
File "/usr/local/bin/../lib/node/wafadmin/tools/config_c.py", line 444, in check
Ret = self. run_c_code (* k, ** kW)
File "/usr/local/bin/../lib/node/wafadmin/tools/config_c.py", line 521, in run_c_code
O = BLD (features = Kw ['features '], source = test_f_name, target = 'testprog ')
File "/usr/local/bin/../lib/node/wafadmin/build. py", line 343, in _ call __
Return taskgen. task_gen (* k, ** kW)
File "/usr/local/bin/../lib/node/wafadmin/taskgen. py", line 118, in _ init __
Self. Env = self. bld. Env. Copy ()
Attributeerror: 'nonetype 'object has no attribute 'copy'
NPM Err! Forced, continuing error: node-expat@1.4.0 install: 'node-WAF configure built'
NPM Err! Forced, continuing 'sh "-c" "node-WAF configure build" 'failed' with 1
NPM Err! Forced, continuing at childprocess. <anonymous> (/home/XXX/downloads/package/lib/utils/exec. JS: 49: 20)
NPM Err! Forced, continuing at childprocess. emit (events. JS: 67: 17)
NPM Err! Forced, continuing at childprocess. onexit (child_process.js: 192: 12)