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    <title>topic Re: ArcGIS Pro 1.0 constantly crashes in ArcGIS Pro Questions</title>
    <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297183#M12905</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Jeremy and Drew,&lt;/P&gt;&lt;P&gt;thank you for your responses. I thought as well, that this could come from the python Installation but I´m using the version coming with ArcGIS Pro (see attachment):&lt;/P&gt;&lt;P&gt;&lt;IMG alt="Python.JPG" class="jive-image image-1" src="https://community.esri.com/legacyfs/online/60458_Python.JPG" style="width: 620px; height: 183px;" /&gt;&lt;/P&gt;&lt;P&gt;Could it be a conflict between python versions?&lt;/P&gt;&lt;P&gt;Thanks,&lt;/P&gt;&lt;P&gt;Martin&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Tue, 10 Feb 2015 07:25:23 GMT</pubDate>
    <dc:creator>MartinScheiber</dc:creator>
    <dc:date>2015-02-10T07:25:23Z</dc:date>
    <item>
      <title>ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297180#M12902</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hey everybody,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I installed ArcGIS Pro 1.0 on my Windows 7 Professional SP1 64-Bit machine yesterday an started playing around with it.&lt;/P&gt;&lt;P&gt;Unfortunately it always crashes. After some time I get the message "ArcGIS Pro is not working anymore" and then it shuts down.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I got a feeling, that that always happenes when I try to do something referred to Analysis (e.g. Opening the Analysis Tab).&lt;/P&gt;&lt;P&gt;Have any errors like that been reported already?&lt;/P&gt;&lt;P&gt;Are there any logfiles or other places where I could find further information about this issue?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I have ArcGIS 10.3 installed as well and that works perfectly. I have both python versions 2.7 and 3.4 installed.&lt;/P&gt;&lt;P&gt;Must be some kind of software conflict, since I got pretty good hardware.&amp;nbsp; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks in advance,&lt;/P&gt;&lt;P&gt;Martin &lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 06 Feb 2015 11:42:59 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297180#M12902</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-02-06T11:42:59Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297181#M12903</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Martin,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I conferred with a few folks here and they suggested this can happen if Python is not installed. Can you take a look in Control Panel-&amp;gt;Programs and Features and see if you see Python in the list?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Regards,&lt;/P&gt;&lt;P&gt;Jeremy W.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 09 Feb 2015 20:55:01 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297181#M12903</guid>
      <dc:creator>JeremyWright</dc:creator>
      <dc:date>2015-02-09T20:55:01Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297182#M12904</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Martin,&lt;/P&gt;&lt;P&gt;You mentioned you have Python 3.4 installed -- is this the "Python 3.4.1 for ArcGIS Pro" installation that is described &lt;A href="https://pro.arcgis.com/en/pro-app/arcpy/get-started/installing-python-for-arcgis-pro.htm"&gt;here &lt;/A&gt;or an installation you downloaded and installed from python.org??&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks,&lt;/P&gt;&lt;P&gt;Drew&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 09 Feb 2015 22:07:28 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297182#M12904</guid>
      <dc:creator>DrewFlater</dc:creator>
      <dc:date>2015-02-09T22:07:28Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297183#M12905</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Jeremy and Drew,&lt;/P&gt;&lt;P&gt;thank you for your responses. I thought as well, that this could come from the python Installation but I´m using the version coming with ArcGIS Pro (see attachment):&lt;/P&gt;&lt;P&gt;&lt;IMG alt="Python.JPG" class="jive-image image-1" src="https://community.esri.com/legacyfs/online/60458_Python.JPG" style="width: 620px; height: 183px;" /&gt;&lt;/P&gt;&lt;P&gt;Could it be a conflict between python versions?&lt;/P&gt;&lt;P&gt;Thanks,&lt;/P&gt;&lt;P&gt;Martin&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 10 Feb 2015 07:25:23 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297183#M12905</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-02-10T07:25:23Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297184#M12906</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi Martin,&lt;/P&gt;&lt;P&gt;Can you check your system environment variables for a PYTHONPATH variable and report the value if that key exists?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;To get to environment variables:&lt;/P&gt;&lt;P&gt;1. hit windows keyboard key + pause key to open System dialog&lt;/P&gt;&lt;P&gt;2. On the left side of the window hit "Advanced system settings"&lt;/P&gt;&lt;P&gt;3. on the bottom of the dialog that opens click "Environment variables..."&lt;/P&gt;&lt;P&gt;3. Look in both the user and system variables for PYTHONPATH&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 10 Feb 2015 18:41:11 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297184#M12906</guid>
      <dc:creator>DrewFlater</dc:creator>
      <dc:date>2015-02-10T18:41:11Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297185#M12907</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I am having the same issues as Martin--same computer setup (windows 7 professional, sp1 64-bit, Python 3.4.1 for ArcGIS Pro). ArcGIS Pro crashes virtually every time I open it, nearly immediately. I've checked that all my system requirements are met, and they all check out.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I followed these instructions to check the environment variables and can see nothing related to PYTHONPATH in either the user or system variables.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 10 Feb 2015 19:20:52 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297185#M12907</guid>
      <dc:creator>MollyJackson</dc:creator>
      <dc:date>2015-02-10T19:20:52Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297186#M12908</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Molly and Martin,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;can you take a look in your C:\Program Files\ArcGIS\Pro\Support directory and find a file called ArcGISPro.pth?&amp;nbsp; open it in a text editor and copy/paste the contents here.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Regards,&lt;/P&gt;&lt;P&gt;Jeremy W.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 10 Feb 2015 19:27:04 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297186#M12908</guid>
      <dc:creator>JeremyWright</dc:creator>
      <dc:date>2015-02-10T19:27:04Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297187#M12909</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;IMG alt="Capture.JPG" class="jive-image image-1" src="https://community.esri.com/legacyfs/online/60589_Capture.JPG" style="width: 620px; height: 75px;" /&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 10 Feb 2015 19:36:46 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297187#M12909</guid>
      <dc:creator>MollyJackson</dc:creator>
      <dc:date>2015-02-10T19:36:46Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297188#M12910</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;This is interesting...starting in one of the later Pro betas, the default install directory was changed to C:\Program Files\ArcGIS\Pro.&lt;/P&gt;&lt;P&gt;Will you check what your install directory is please?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Also, there is another pth file at &lt;SPAN style="font-size: 11.0pt; font-family: 'Calibri','sans-serif'; color: #1f497d;"&gt;C:\Python34\Lib\site-packages\ArcGISPro.pth, please let us know the contents of this file.&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 10 Feb 2015 20:05:00 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297188#M12910</guid>
      <dc:creator>DrewFlater</dc:creator>
      <dc:date>2015-02-10T20:05:00Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297189#M12911</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;The other ArcGISPro.pth file is the same as the first:&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS Pro\bin&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS Pro\Resources\ArcPy&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS Pro\Resources\ArcToolBox\Scripts&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;My install directory is C:\Program Files\ArcGIS Pro&lt;/P&gt;&lt;P&gt;There is a directory at C:\Program Files\ArcGIS\Pro but it is empty.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 10 Feb 2015 20:19:55 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297189#M12911</guid>
      <dc:creator>MollyJackson</dc:creator>
      <dc:date>2015-02-10T20:19:55Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297190#M12912</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Drew,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;the value of my PYTHONPATH variable is:&lt;/P&gt;&lt;P&gt;C:\OSGeo4W\apps\qgis\python;C:\Users\scheiber\.qgis\python;C:\OSGeo4W\apps\python27;C:\OSGeo4W\bin;c:\mapnik-v2.2.0\python\2.7\site-packages;C:\Django-1.5.3\projects\geodjango&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 11 Feb 2015 07:24:41 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297190#M12912</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-02-11T07:24:41Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297191#M12913</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Jeremy,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;my pth-file is exactely the same.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 11 Feb 2015 07:26:35 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297191#M12913</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-02-11T07:26:35Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297192#M12914</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Drew,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;my install directory is&amp;nbsp; C:\Program Files\ArcGIS\Pro,&lt;/P&gt;&lt;P&gt;The other pth is:&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\bin&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\Resources\ArcPy&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\Resources\ArcToolBox\Scripts&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 11 Feb 2015 07:31:07 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297192#M12914</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-02-11T07:31:07Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297193#M12915</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Sorry, I have to correct myself:&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\Support\ArcGISPro.pth&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\bin&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\Resources\ArcPy&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\Resources\ArcToolBox\Scripts&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 11 Feb 2015 07:34:19 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297193#M12915</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-02-11T07:34:19Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297194#M12916</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Martin,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;can you try removing your PYTHONPATH variable temporarily?&amp;nbsp; If you do that Pro should look for python in the installed dir using the pth file...&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Molly, it looks like your pth files are pointing at a different directory than Pro final is by default installed to.&amp;nbsp; Try changing the pth files to point at the directory Pro is installed to now (by default C:\Program Files\ArcGIS\Pro\ instead of Program Files\ArcGISPro\)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Drew, any other suggestions for Martin or Molly?&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 11 Feb 2015 19:45:13 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297194#M12916</guid>
      <dc:creator>JeremyWright</dc:creator>
      <dc:date>2015-02-11T19:45:13Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297195#M12917</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi everyone, another thing to try....&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Before that, has anyone logged an issue with Esri support? That would be a big help if you haven't done it already.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;So, please try removing the toolbox "Space Time Pattern Mining Tools.pyt" from the install directory:&lt;/P&gt;&lt;P&gt;C:\Program Files\ArcGIS\Pro\Resources\ArcToolBox\Toolboxes\&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;You can just move it onto your desktop for safe keeping. Then fire up ArcGIS Pro and see if the crash still occurs when loading the Analysis ribbon.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks,&lt;/P&gt;&lt;P&gt;Drew&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 11 Feb 2015 23:06:35 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297195#M12917</guid>
      <dc:creator>DrewFlater</dc:creator>
      <dc:date>2015-02-11T23:06:35Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297196#M12918</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Jeremy and Drew,&lt;/P&gt;&lt;P&gt;thank you for your support. The hint with the environment variables was very helpful.&lt;/P&gt;&lt;P&gt;In my case the problem was not caused by the PYTHONPATH variable but by PYTHONHOME.&lt;/P&gt;&lt;P&gt;PYTHONHOME was pointing to a different Python installation (C:\OSGeo4W\apps\python27).&lt;/P&gt;&lt;P&gt;Removing PYTHONHOME did the trick. Luckily Python 2.7 keeps on running as well so far.&lt;/P&gt;&lt;P&gt;&lt;IMG src="https://community.esri.com/legacyfs/online/emoticons/happy.png" /&gt;&lt;IMG src="https://community.esri.com/legacyfs/online/emoticons/happy.png" /&gt;&lt;IMG src="https://community.esri.com/legacyfs/online/emoticons/happy.png" /&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Still, I think the error messaging for ArcGIS Pro could be improved.&lt;/P&gt;&lt;P&gt;It´s always difficult to find the problem if a program crashes without any message.&lt;/P&gt;&lt;P&gt;"Python is not working!" could help a lot already.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 25 Feb 2015 13:06:40 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297196#M12918</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-02-25T13:06:40Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297197#M12919</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hello everyone,&lt;/P&gt;&lt;P&gt;Can you let us know the software you installed that set the PYTHONHOME variable? I've tested, and just setting that variable alone does not cause ArcGIS Pro to crash, so there must be something more.&lt;/P&gt;&lt;P&gt;Thanks&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 02 Mar 2015 18:09:23 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297197#M12919</guid>
      <dc:creator>DrewFlater</dc:creator>
      <dc:date>2015-03-02T18:09:23Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297198#M12920</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hey Drew,&lt;/P&gt;&lt;P&gt;sorry but I do not remember which program set this variable initially. Is there a way to find this out?&lt;/P&gt;&lt;P&gt;I have a lot of different python stuff installed.&lt;/P&gt;&lt;P&gt;The only hint that might help: I found out that using PYTHONHOME, Python 3.4 didn´t work at all. When I start Python (command line) I get the following error:&lt;/P&gt;&lt;P&gt;&lt;IMG alt="Python34_Error.JPG" class="image-1 jive-image" src="https://community.esri.com/legacyfs/online/67782_Python34_Error.JPG" style="width: 620px; height: 316px;" /&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 03 Mar 2015 10:51:27 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297198#M12920</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-03-03T10:51:27Z</dc:date>
    </item>
    <item>
      <title>Re: ArcGIS Pro 1.0 constantly crashes</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297199#M12921</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Just found out that my PyScripter is not working anymore as it did before. Looks like it´s relying on the PYTHONHOME variable. I guess then, that this variable was set by it in the first place. &lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 04 Mar 2015 15:11:52 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-1-0-constantly-crashes/m-p/297199#M12921</guid>
      <dc:creator>MartinScheiber</dc:creator>
      <dc:date>2015-03-04T15:11:52Z</dc:date>
    </item>
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