[Lazarus] what & Where is Error

[FreeMan]

Hello,
lazarus svn r47058. After update, I can not build lazarus. I could find 
after 4 hours later. problem on "thumbctrl 3.0" third party packages. 
I'm use this pack since 5 months any errors. now has a error but what is 
error? which file? why Input / output error?

this is in "messages box" that all, just 2 lines.
Compiling package thumbctrl 3.0: Exit code 256, Errors: 1
Fatal: I/O error: File not open

this is from terminal output:
TPkgManager.DoCompilePackage A thumbctrl 3.0 Flags=[]
TLazPackageGraph.CheckIfCurPkgOutDirNeedsCompile  Compile was incomplete 
for thumbctrl 3.0
   State 
file="/home/lazarus/components/thumbviewer/lib/x86_64-linux/thumbctrl.compiled"
TExternalTool.DoExecute Title="Compiling package thumbctrl 3.0" 
Process.CurrentDirectory="/home/lazarus/components/thumbviewer/" 
Executable="/opt/freepascal/2.7.1/bin/fpc" Params:
-MObjFPC
-Scghi
-Cg
-O1
-l
-vewnhibq
-Fu/opt/lazarus/packager/units/x86_64-linux
-Fu/opt/lazarus/components/lazutils/lib/x86_64-linux
-Fu/opt/lazarus/lcl/units/x86_64-linux
-Fu/opt/lazarus/lcl/units/x86_64-linux/qt
-Fu/home/lazarus/components/thumbviewer/
-FU/home/lazarus/components/thumbviewer/lib/x86_64-linux/
-dLCL
-dLCLqt
-dUseCThreads
thumbctrl.pas