> Source: [sk139174](https://support.checkpoint.com/results/sk/sk139174) # sk139174 - Policy installation fails with "Error: Inside #ifdef block at end of input" | Property | Value | |----------|-------| | Solution ID | sk139174 | | Date Created | 2018-11-05 | | Last Modified | 2023-09-12 | | Technical Level | Advanced | | Products | Security Management Server | | Versions | R81.20, R81.10 (EOS), R81 (EOS) | ## Symptoms - * Policy installation fails with this error: ``` cpp: line N, Error: Inside #ifdef block at end of input, depth = X 1 error in preprocessor Error compiling IPv6 flavor. Compilation failed. Operation ended with errors. ``` * The *$FWDIR/log/cpm.elg* file on the Management Server shows: ``` cpp: line XXX, Error: Inside #ifdef block at end of input, depth = 1&CURRENTVERCMP 1 error in preprocessor&CURRENTVERCMP Error compiling IPv6 flavor.&CURRENTVERCMP **##MSG_IDENTIFY##**3&2&Compilation failed.&50&&1&CURRENTVERCMP Operation ended with errors.&CURRENTVERCMP **##MSG_IDENTIFY##**8&2&Operation ended with errors.&&&1&CURRENTVERCMP ``` ## Cause The *crypt.def* file was modified with incorrect syntax. For location of these file, see [sk98241](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk98241). ## Solution This solution requires authentication. Please log in to view the full solution. --- # Agent Instructions This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products. ## Navigating This Knowledge Base - **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt) - **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml) - **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}` - **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content