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<div>Dear colleagues,</div>
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<div>When installing Ipopt, the test programs failed.</div>
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<div>This comes from the MA27 routine from the HSL library that cannot be found:</div>
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<div><b> ******** Test FAILED! ********</b></div>
<div><b>Output of the test program does not contain 'EXIT: Optimal Solution Found'.</b></div>
<div><b>Testing sIpopt Example parametric_cpp...</b></div>
<div><b>./run_unitTests: line 19: 345541 Segmentation fault $@ > tmpfile 2>&1</b></div>
<div><b>0 </b></div>
<div><b> ---- 8< ---- Start of test program output ---- 8< ----</b></div>
<div><b>Exception of type: OPTION_INVALID in file "/home/eh/epenoyr/Ipopt/src/Algorithm/IpAlgBuilder.cpp" at line 268:</b></div>
<div><b> Exception message: Selected linear solver MA27 not available.</b></div>
<div><b>Tried to obtain MA27 from shared library "libhsl.so", but the following error occured:</b></div>
<div><b>libhsl.so: cannot open shared object file: No such file or directory</b></div>
<div> </div>
<div><b>EXIT: Invalid option encountered.</b></div>
<div><b> ---- 8< ---- End of test program output ---- 8< ----</b></div>
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<div>Could you please tell me how to download the missing routinr?</div>
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<div>Best</div>
<div> </div>
<div><font face="Calibri"> </font></div>
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<td><font face="Arial" color="#005191"><b>Richard EPENOY </b></font></td>
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<td><font face="Arial" size="1" color="#005191"><span style="font-size:7.5pt;"><b>Ph.D. - Expert in space trajectory optimization </b></span></font></td>
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<td style="background-color:#EEEEEE;"><font face="Arial" size="1" color="#005191"><span style="font-size:7.5pt;background-color:#EEEEEE;"><b> </b><a href="https://www.researchgate.net/profile/Richard_Epenoy"><font color="blue"><u>https://www.researchgate.net/profile/Richard_Epenoy</u></font></a></span></font></td>
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<div><font face="Arial" size="1" color="#44546A"><span style="font-size:8pt;"><i>Nihil omnino in mundo contingit, in quo non maximi minimive ratio quaepiam eluceat</i></span></font></div>
<div><font face="Arial" size="1" color="#44546A"><span style="font-size:8pt;">Opera I 24, p. 231, 1744, Leonhard Euler (1707-1783)</span></font></div>
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