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    Hello,<br>
    <br>
    after a thousand of execution of a scenario which was working fine,
    I suddenly have the following error when trying to execute a
    scenario.<br>
    Any idea?<br>
    Thanks<br>
    <br>
    Junior<br>
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        <div>Waf: Entering directory `/ndnSIM/ns-3/build'<br>
          Waf: Leaving directory `/ndnSIM/ns-3/build'<br>
          Build commands will be stored in build/compile_commands.json<br>
          Traceback (most recent call last):<br>
            File
"/ndnSIM/ns-3/.waf-1.8.12-f00e5b53f6bbeab1384a38c9cc5d51f7/waflib/Scripting.py",
          line 108, in waf_entry_point<br>
              run_commands()<br>
            File
"/ndnSIM/ns-3/.waf-1.8.12-f00e5b53f6bbeab1384a38c9cc5d51f7/waflib/Scripting.py",
          line 169, in run_commands<br>
              ctx=run_command(cmd_name)<br>
            File
"/ndnSIM/ns-3/.waf-1.8.12-f00e5b53f6bbeab1384a38c9cc5d51f7/waflib/Scripting.py",
          line 160, in run_command<br>
              ctx.execute()<br>
            File
"/ndnSIM/ns-3/.waf-1.8.12-f00e5b53f6bbeab1384a38c9cc5d51f7/waflib/Scripting.py",
          line 370, in execute<br>
              return execute_method(self)<br>
            File
"/ndnSIM/ns-3/.waf-1.8.12-f00e5b53f6bbeab1384a38c9cc5d51f7/waflib/Build.py",
          line 104, in execute<br>
              self.execute_build()<br>
            File
"/ndnSIM/ns-3/.waf-1.8.12-f00e5b53f6bbeab1384a38c9cc5d51f7/waflib/Build.py",
          line 118, in execute_build<br>
              self.post_build()<br>
            File
"/ndnSIM/ns-3/.waf-1.8.12-f00e5b53f6bbeab1384a38c9cc5d51f7/waflib/Build.py",
          line 273, in post_build<br>
              m(self)<br>
            File "waf-tools/clang_compilation_database.py", line 45, in
          write_compilation_database<br>
              root = json.load(database_file)<br>
            File "/usr/lib/python2.7/json/__init__.py", line 291, in
          load<br>
              **kw)<br>
            File "/usr/lib/python2.7/json/__init__.py", line 339, in
          loads<br>
              return _default_decoder.decode(s)<br>
            File "/usr/lib/python2.7/json/decoder.py", line 364, in
          decode<br>
              obj, end = self.raw_decode(s, idx=_w(s, 0).end())<br>
            File "/usr/lib/python2.7/json/decoder.py", line 380, in
          raw_decode<br>
              obj, end = self.scan_once(s, idx)<br>
          ValueError: Invalid control character at: line 6138 column 11
          (char 1200128)<br>
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