{"id":171140,"date":"2023-06-05T07:05:49","date_gmt":"2023-06-05T07:05:49","guid":{"rendered":"\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/"},"modified":"2023-07-31T12:30:07","modified_gmt":"2023-07-31T12:30:07","slug":"what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/","title":{"rendered":"What errors occur if the UDF is not compiled or cannot be found when loading?"},"content":{"rendered":"<p>If you compile without defining include &#8220;udf.h&#8221;, you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error &#8220;Warning: no newline at end of file&#8221; will appear. Without compiling, it cannot be Loaded:  Opening library &#8220;libudf&#8221; &#8230;  Error: open_udf_library: No such file or directory  When reading the case file, the error received when the UDF file cannot be found is:  Library opening &#8220;libudf&#8221; &#8230;  Error: Open_udf_library: couldn\u2019t open library: libudf\/ln86\/2d\/libudf.so<\/p>\n","protected":false},"template":"","class_list":["post-171140","topic","type-topic","status-publish","hentry","topic-tag-4457","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general-fluent"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"If you compile without defining include &quot;udf.h&quot;, you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error &quot;Warning: no newline at end of file&quot; will appear. Without compiling, it cannot\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"What errors occur if the UDF is not compiled or cannot be found when loading? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"If you compile without defining include &quot;udf.h&quot;, you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error &quot;Warning: no newline at end of file&quot; will appear. Without compiling, it cannot\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-06-05T07:05:49+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:30:07+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"What errors occur if the UDF is not compiled or cannot be found when loading? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"If you compile without defining include &quot;udf.h&quot;, you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error &quot;Warning: no newline at end of file&quot; will appear. Without compiling, it cannot\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"position\":3,\"name\":\"fluent\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\\\/#listItem\",\"name\":\"What errors occur if the UDF is not compiled or cannot be found when loading?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\\\/#listItem\",\"position\":4,\"name\":\"What errors occur if the UDF is not compiled or cannot be found when loading?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\\\/\",\"name\":\"What errors occur if the UDF is not compiled or cannot be found when loading? | Ansys Knowledge\",\"description\":\"If you compile without defining include \\\"udf.h\\\", you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error \\\"Warning: no newline at end of file\\\" will appear. Without compiling, it cannot\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\\\/#breadcrumblist\"},\"datePublished\":\"2023-06-05T07:05:49+00:00\",\"dateModified\":\"2023-07-31T12:30:07+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"What errors occur if the UDF is not compiled or cannot be found when loading? | Ansys Knowledge","description":"If you compile without defining include \"udf.h\", you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error \"Warning: no newline at end of file\" will appear. Without compiling, it cannot","canonical_url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/knowledge","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","position":3,"name":"fluent","item":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/#listItem","name":"What errors occur if the UDF is not compiled or cannot be found when loading?"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/#listItem","position":4,"name":"What errors occur if the UDF is not compiled or cannot be found when loading?","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization","name":"Ansys Knowledge","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/knowledge\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/#webpage","url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/","name":"What errors occur if the UDF is not compiled or cannot be found when loading? | Ansys Knowledge","description":"If you compile without defining include \"udf.h\", you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error \"Warning: no newline at end of file\" will appear. Without compiling, it cannot","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/#breadcrumblist"},"datePublished":"2023-06-05T07:05:49+00:00","dateModified":"2023-07-31T12:30:07+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website","url":"https:\/\/innovationspace.ansys.com\/knowledge\/","name":"Ansys Knowledge","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Knowledge | Ansys Innovation Space","og:type":"article","og:title":"What errors occur if the UDF is not compiled or cannot be found when loading? | Ansys Knowledge","og:description":"If you compile without defining include &quot;udf.h&quot;, you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error &quot;Warning: no newline at end of file&quot; will appear. Without compiling, it cannot","og:url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/","article:published_time":"2023-06-05T07:05:49+00:00","article:modified_time":"2023-07-31T12:30:07+00:00","twitter:card":"summary_large_image","twitter:title":"What errors occur if the UDF is not compiled or cannot be found when loading? | Ansys Knowledge","twitter:description":"If you compile without defining include &quot;udf.h&quot;, you will get an error message if variables are not defined, and cannot be compiled. DEFINE macro arguments must be defined in all on one line. If not, it will not compile and an error &quot;Warning: no newline at end of file&quot; will appear. Without compiling, it cannot"},"aioseo_meta_data":{"post_id":"171140","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2025-10-18 01:40:42","updated":"2026-07-30 04:59:03","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/\" title=\"fluent\">fluent<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tWhat errors occur if the UDF is not compiled or cannot be found when loading?\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/knowledge"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/"},{"label":"fluent","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/"},{"label":"What errors occur if the UDF is not compiled or cannot be found when loading?","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-errors-occur-if-the-udf-is-not-compiled-or-cannot-be-found-when-loading\/"}],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["2\/6\/2023 20:20"],"_bbp_forum_id":["27796"],"_bbp_author_ip":["209.182.204.162"],"_btv_view_count":["2593"],"siebel_km_number":["2045199"],"product_version":["14"],"km_published_date":["2016-11-30T00:00:00.000Z"],"family":["Fluid Dynamics"],"application_name":["FLUENT"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/171140","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/171140\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=171140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}