Server error, google.script.run fails when using a shared library -

i have 2 google apps script projects, both of spreadsheet type.

let's call 1 server , other client.

i want expose functions server can call them client.

libraries seem perfect this.

unfortunately when add server library client using resources --> libraries... menu option, stuff breaks.

note, though server library added client, never use server library functions. (in fact server code.gs totally blank.)

server code.gs

//nothing, totally blank, these test projects created find out wrong 

client code.gs

//this our entry point //it instantiates sidebar sidebar.html function test()  {   spreadsheetapp.getui().showsidebar(htmlservice.createhtmloutputfromfile('sidebar')   .setsandboxmode(htmlservice.sandboxmode.iframe)); }   function testreturn() {   logger.log("dotest() called");   return 1; } 

client sidebar.html

<script> function yay(d) {   alert('yay: ' + d); }  function boo(d) {   alert('boo: ' + d); }  google.script.run.withfailurehandler(boo).withsuccesshandler(yay).testreturn(); </script> 

what supposed happen:

1. we call client.test().

   this opens sidebar sidebar.html

   the sidebar runs:

   google.script.run.withfailurehandler(boo).withsuccesshandler(yay).testreturn(); 

2. this should call testreturn() client code.gs

   and when testreturn() finishes (or doesn't)...

3. either yay(d) or boo(d) should called.

very simple...

so when have no library attached, yay(d) called! (with d = 1 in case)

but when do have library attached, boo(d) called with

d = scripterror: we're sorry, server error occurred. please wait bit , try again.

also, believe testreturn() never run because not show in logs.

what doing wrong? bug on google's side?

i made test projects public:

• server (server key adding library: mb7vyhsqutr9f4-cmphfpybfykrdizsbp)

• client

to summarize, not understand why adding shared library breaks google.script.run.... functionality. because library blank.

tl;dr "library" spreadsheet-contained script. use stand-alone script library, , you'll fine.

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i created script & library example code, , worked perfectly. grabbed copies of shared files, both spreadsheets, , reproduced error:

we're sorry, server error occurred. please wait bit , try again. 

i tried couple of well-known public libraries, sheetconverter , betterlog. if removed library project, well.

observation: problem not presence of a library, it's presence of your library.

what's special library, compared hand-rolled copy of , 2 public libraries? yours spreadsheet-contained. 3 others stand-alone.

conclusion: don't that. libraries, use stand-alone scripts.

i haven't found spelled out in current documentation. happens, libraries stand-alone scripts, i've never run limitation before, , can't whether it's new or if older documentation or examples expressed stand-alone requirement.

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about other questions / problems...

• and when testreturn() finishes (or doesn't)...

  wrt "or doesn't" part... failurehandler invoked when server function throws exception. error message you've observed 1 such exception. if purposely want invoke failurehandler, server code should throw.

• also, believe testreturn() never run because not show in logs.

  the editor's log viewer not accessible triggered scripts, should consider using betterlog library write logs spreadsheet. works trigger functions , web apps have no attached debugger. (just saying, because lack of log cannot reliably imply function called client code did not run.)